B43L

ARTICLES FOR WRITING OR DRAWING UPON;

WRITING OR DRAWING AIDS;

ACCESSORIES FOR WRITING OR DRAWING workshop equipment for marking-out work B25H7/00; teaching hand-writing or drawing G09B11/00

Devices used for both teaching and facilitating writing or drawing are classified in G09B11/00)

B43L1/00

Articles for writing or drawing upon

B43L1/00

Repeatedly-usable boards or tablets for writing or drawing drawing-boards B43L5/00

B43L1/002

chemical details

B43L1/004

with illuminating devices

B43L1/006

with luminescent substances

B43L1/008

with magnetic action

B43L1/02

Slates

B43L1/04

Blackboards

wall mounting or suspension arrangements for blackboards or the like A47B97/001

; easels or stands for blackboards A47B97/04

B43L1/045

with magnetic action

B43L1/06

rigid

B43L1/08

flexible

B43L1/10

Writing surfaces thereof

B43L1/12

having translucent writing surfaces producing visual impressions by co-operation with backing members

B43L1/008 takes precedence

B43L1/123

Flexible writing surface or backing

B43L1/126

withinterposed adhesive substances

B43L3/00

Writing or drawing underlays, e.g. blotting pads blotters B43L17/00;

supports for note pads: B42D5/005

B43L3/001

with illuminating devices

B43L3/002

with luminescent substances

B43L3/004

without blotting means

B43L3/005

provided with a casing

B43L3/007

with rain protection means

B43L3/008

with supporting means bracelets with means for attaching a writing instrument or a memo pad A44C5/0046; for attachment to shopping trolleys B62B3/1428

B43L5/00

Drawing boards drawing desks or tables A47B27/00, A47B85/02; stands for drawing-boards A47B97/04

B43L5/002

with pivoting drawing surface

B43L5/005

with magnetic action

B43L5/007

drawing copying devices using a transparency

B43L5/02

having means for clamping sheets of paper thereto drawing-pins B43M15/00

B43L5/022

with magnets

B43L5/025

with paper rolls

B43L5/027

with suction devices

B43L7/00

Writing or drawing aids

B43L7/00

Straightedges guides; curve rulers or templets B43L13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direct reading, G01B

In this group, the following term is used with the meaning indicated:

"straightedge" means an instrument or its edge serving the purpose of acting as a guide for the drawing of a straight line.

B43L7/002

for drawing boards and tables

B43L7/005

combined with other drawing aids

B43L7/007

with holding means

B43L7/02

T-squares

and other similar squares

B43L7/023

with magnets

B43L7/027

Plural non-adjustable straightedges fixed at right angles B43L7/02 takes precedence

B43L7/0275

Triangles

B43L7/033

Plural non-adjustable straightedges forming non-right angles

B43L7/04

with rollers with interconnected rollers B43L13/02

B43L7/08

with arrangements for attaching additional drawing equipment, e.g. for hatching, dotting

B43L7/10

Plural straightedges relatively movable

B43L7/12

Square and pivoted straightedges

B43L7/125

Comprising at least two straightedges remaining parallel

B43L7/14

Square and sliding straight edges

B43L9/00

Circular curve-drawing or like instruments curve rulers or templets B43L13/00

B43L9/002

with perforated or marked discs

B43L9/005

with rollers or carriages

B43L9/007

with perforated or marked rulers

B43L9/02

Compasses proportional compasses B43L9/08;

Compasses for drawing ellipses B43L11/041;

Compasses for drawing spirals B43L11/06

B43L9/025

Compasses with parallel legs

B43L9/04

Beam compasses

B43L9/045

Tape compasses

B43L9/06

with legs formed by flat springs

B43L9/08

Proportional compasses or dividers

B43L9/10

with arrangements for drawing polygons

B43L9/12

Dividers proportional dividers B43L9/08

B43L9/14

with changeable leg-ends for conversion into compasses, dividers, or callipers B43L9/24 takes precedence

B43L9/16

Features common to compasses, dividers, and callipers

B43L9/18

Legs with toggle joints

B43L9/20

Pivots

B43L9/22

Leg-angle adjusting-means separate from pivots

B43L9/24

Means for mounting points or writing appliances on legs

B43L9/245

for mounting centering elements

B43L11/00

Non-circular-curve-drawing instruments curve rulers or templets B43L13/20

B43L11/005

pendulum-actuated

B43L11/02

for drawing conic sections

B43L11/04

for drawing ellipses

B43L11/041

by means of a compass

B43L11/043

with stencils

B43L11/045

with cords or like flexible elements

B43L11/05

with gears

B43L11/055

with guides

B43L11/06

for drawing spirals

B43L11/08

for drawing involutes

B43L12/00

Means to prevent slippage

B43L12/02

magnetic

magnetic holding means for T-squares: B43L7/023

B43L13/00

Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for stencils for surface decoration B44D

B43L13/001

Mathematical drawing instruments

B43L13/002

Angle intersecting devices

B43L13/004

Manual lettering devices

B43L13/005

Portable combined drawing-aids including boards

B43L13/007

Contour tracing devices

B43L13/008

Circle transformers

B43L13/02

Draughting machines or drawing devices for keeping parallelism T-squares B43L7/02

B43L13/022

automatic apparatus for recording measured values G01D; control systems for drawing machines G06K15/22, G06F3/13

B43L13/024

Drawing heads therefor

B43L13/026

for writing characters or symbols manual lettering devices B43L13/004

B43L13/028

Hand held or associated with the writing instrument

B43L13/04

Guides for rulers

B43L13/041

with toothed racks

B43L13/043

with squares

B43L13/045

with carriages

B43L13/046

with cables

B43L13/048

with T-squares

B43L13/06

with pivoted guide rods

B43L13/08

Protractor heads

B43L13/10

Pantographic instruments for copying, enlarging, or diminishing arrangements for copying in machine tools B23Q

B43L13/12

Multiple writing devices

B43L13/14

Devices for drawing in perspective

B43L13/141

Two-dimensional devices

B43L13/142

T-squares T-squares in general B43L7/02

B43L13/143

mounted on parallel-motion drawing appliances parallel devices in general B43L13/02

B43L13/144

including protractors

B43L13/145

Rulers rulers in general B43L7/00

B43L13/146

Squares squares in general B43L7/02

B43L13/147

Three-dimensional devices

B43L13/148

using copying or multiple drawing arrangements

B43L13/149

including grids

B43L13/16

free-hand

B43L13/18

having optical or projecting equipment optical systems or apparatus G02B; projectors G03B

B43L13/20

Curve rulers or templets

B43L13/201

Stencils for drawing figures, objects

B43L13/203

human, animal, or vegetal figures

B43L13/205

geometrical figures

B43L13/206

material objects

B43L13/208

letters, numbers, symbols lettering devices B43L13/004

B43L13/22

Adjustable curve rulers

B43L13/24

Devices for generating stepwise movements of drawing equipment, e.g. for hatching

B43L15/00

Supports for attachment to hands or arms for facilitating writing or drawing

B43L17/00

Writing or drawing accessories

B43L17/00

Blotters blotting pads B43L3/00; combined with writing implements B43K29/04; making blotting paper D21F11/14

B43L17/02

for blotting-paper sheets

B43L17/04

hand held

B43L17/06

for reeled blotting-paper

B43L17/08

Roller blotters

B43L17/10

using blotting material other than paper

B43L19/00

Erasers, rubbers, or erasing devices

Holders therefor rubbers or erasing knives combined with writing implements B43K29/02, B43K29/18

B43L19/0006

motor-driven

B43L19/0012

Mechanical motors, e.g. springs, spindles

B43L19/0018

with fluids

B43L19/0025

Eraser or rubber material, e.g. comprising hard particles

B43L19/0031

comprising magnetic particles therein

B43L19/0037

Eraser cleaners

B43L19/0043

Erasing by electronic or electrolytic means

B43L19/005

Finger mounted erasers

B43L19/0056

Holders for erasers

B43L19/0062

Magnetic holders

B43L19/0068

Hand-held holders

B43L19/0075

of the pencil type

B43L19/0081

of the mechanical pencil type

B43L19/0087

Assembling, repairing or finishing erasers

B43L19/0093

Eraser shields

B43L19/02

Erasing knives knives in general B26B

B43L19/04

Fibrous erasers

B43L21/00

Blackboard or slate cleaning devices

B43L21/02

with means for absorbing the chalk dust

B43L21/04

Wiper holders

B43L23/00

Sharpeners for pencils or leads grinding or cutting tools in general B24; B26; combined with writing implements B43K29/06

B43L23/002

with continuous conveying means for the pencil

B43L23/004

with radial cutting blades

B43L23/006

with rasping surfaces

B43L23/008

with rotating cutting bodies

B43L23/02

with gearing

B43L23/04

with cranked handles

B43L23/06

in which the pencils or leads are sharpened by only axial movement against cutting blades

B43L23/08

in which the pencils or leads are sharpened mainly by rotational movement against cutting blades B43L23/02 takes precedence

B43L23/085

one of the blades being used for shaping the writing point

B43L25/00

Ink receptacles liquid receptacles in general B65D, e.g. B65D1/00

B43L25/001

with adjustable depth of dipping

B43L25/002

Caps or closure means for ink receptacles closure means for containers in general B65D

B43L25/004

Ink receptacles with solid ink; Non reversable receptacles

B43L25/005

Ink receptacles incorporated in a table or a bench

B43L25/007

Portable ink receptacles; Filling devices for receptacles

B43L25/008

with wick feed

B43L25/02

with separate dipping-cups

B43L25/04

supplied by pressure arrangements

B43L25/06

supplied by tilting the receptacles

B43L25/08

with arrangements for dissolving ink powder

B43L25/10

with means for holding objects

B43L25/12

with pen-wiping means

B43L27/00

Ink stands

B43L27/02

having means for securing objects thereon

B43L27/04

securable to other objects