B
SECTION B — PERFORMING OPERATIONS
  
PRINTING
 B43
WRITING AND DRAWING APPLIANCES; BUREAU ACCESSORIES
 B43L
ARTICLES FOR WRITING OR DRAWING UPON; ACCESSORIES FOR WRITING OR DRAWING (workshop equipment for marking-out work B25H 7/00)
 B43L 1/00 - 
B43L 5/00
Articles for writing or drawing upon
 B43L 1/00
Repeatedly-usable boards or tablets for writing or drawing (drawing-boards B43L 5/00)
 B43L 1/02
·  Slates
 B43L 1/04
·  Blackboards (easels A47B 97/04)
 B43L 1/06
·  ·  rigid
 B43L 1/08
·  ·  flexible
 B43L 1/10
·  ·  Writing surfaces thereof
 B43L 1/12
·  having translucent writing surfaces producing visual impressions by co-operation with backing members
 B43L 3/00
Writing or drawing-underlays, e.g. blotting pads (blotters B43L 17/00)
 B43L 5/00
Drawing-boards (drawing-desks or tables A47B 27/00, A47B 85/02; stands for drawing-boards A47B 97/04)
 B43L 5/02
·  having means for clamping sheets of paper thereto (drawing-pins B43M 15/00)
 B43L 7/00 - 
B43L 15/00
Writing or drawing aids
 B43L 7/00
Rulers (guides for rulers other than for T-squares B43L 13/04; adjustable curve rulers B43L 13/22; devices for measuring length G01B)
 B43L 7/02
·  T-squares
 B43L 7/04
·  with rollers (with interconnected rollers B43L 13/02)
 B43L 7/06
·  with adjustably-pivoted arms
 B43L 7/08
·  with arrangements for attaching additional drawing equipment, e.g. for hatching, dotting
 B43L 9/00
Circular curve-drawing or like instruments (curve rulers or templets B43L 13/20)
 B43L 9/02
·  Compasses (proportional compasses B43L 9/08; compasses for drawing spirals B43L 11/06)
 B43L 9/04
·  ·  Beam compasses
 B43L 9/06
·  ·  with legs formed by flat springs
 B43L 9/08
·  Proportional compasses or dividers
 B43L 9/10
·  ·  with arrangements for drawing polygons
 B43L 9/12
·  Dividers (proportional dividers B43L 9/08)
 B43L 9/14
·  with changeable legends for conversion into compasses, dividers, or callipers (B43L 9/24 takes precedence)
 B43L 9/16
·  Features common to compasses, dividers, and callipers
 B43L 9/18
·  ·  Legs with toggle joints
 B43L 9/20
·  ·  Pivots
 B43L 9/22
·  ·  Leg-angle adjusting-means separate from pivots
 B43L 9/24
·  ·  Means for mounting points or writing appliances on legs
 B43L 11/00
Non-circular-curve-drawing instruments (curve rulers or templets B43L 13/20)
 B43L 11/02
·  for drawing conic sections
 B43L 11/04
·  for drawing ellipses
 B43L 11/06
·  for drawing spirals
 B43L 11/08
·  for drawing involutes
 B43L 13/00
Drawing instruments, or writing or drawing appliances, not otherwise provided for; Drawing accessories (stencils for surface decoration B44D)
 B43L 13/02
·  Draughting machines or drawing devices for keeping parallelism (T-squares B43L 7/02)
 B43L 13/04
·  ·  Guides for rulers
 B43L 13/06
·  ·  ·  with pivoted guide rods
 B43L 13/08
·  ·  Protractor heads
 B43L 13/10
·  Pantographic instruments for copying, enlarging, or diminishing (arrangements for copying in machine tools B23Q)
 B43L 13/12
·  ·  Multiple writing devices
 B43L 13/14
·  Devices for drawing in perspective
 B43L 13/16
·  ·  free-hand
 B43L 13/18
·  ·  ·  having optical or projecting equipment (optical systems or apparatus G02B; projectors G03B)
 B43L 13/20
·  Curve rulers or templets
 B43L 13/22
·  ·  Adjustable curve rulers
 B43L 13/24
·  Devices for generating stepwise movements of drawing equipment, e.g. for hatching
 B43L 15/00
Supports for attachment to hands or arms for facilitating writing or drawing
 B43L 17/00 - 
B43L 27/00
Writing or drawing accessories
 B43L 17/00
Blotters (blotting pads B43L 3/00; combined with writing appliances B43K 29/04; making blotting paper D21F 11/14)  [2]
 B43L 17/02
·  for blotting-paper sheets
 B43L 17/04
·  ·  hand-held
 B43L 17/06
·  for reeled blotting-paper
 B43L 17/08
·  ·  Roller blotters
 B43L 17/10
·  using blotting material other than paper
 B43L 19/00
Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing appliances B43K 29/02, B43K 29/18)
 B43L 19/02
·  Erasing knives (knives in general B26B)
 B43L 19/04
·  Fibrous erasers
 B43L 21/00
Blackboard or slate-cleaning devices
 B43L 21/02
·  with means for absorbing the chalk dust
 B43L 21/04
·  Wiper holders
 B43L 23/00
Sharpeners for pencils or leads (grinding or cutting tools in general B24, B26; combined with writing appliances B43K 29/06)  [2]
 B43L 23/02
·  with gearing
 B43L 23/04
·  ·  with cranked handles
 B43L 23/06
·  in which the pencils or leads are sharpened by only axial movement against cutting blades
 B43L 23/08
·  in which the pencils or leads are sharpened mainly by rotational movement against cutting blades (B43L 23/02 takes precedence)
 B43L 25/00
Ink receptacles (liquid receptacles in general B65D, e.g. B65D 1/00)
 B43L 25/02
·  with separate dipping-cups
 B43L 25/04
·  ·  supplied by pressure arrangements
 B43L 25/06
·  ·  supplied by tilting the receptacles
 B43L 25/08
·  with arrangements for dissolving ink powder
 B43L 25/10
·  with means for holding objects
 B43L 25/12
·  with pen-wiping means
 B43L 27/00
Ink stands
 B43L 27/02
·  having means for securing objects thereon
 B43L 27/04
·  securable to other objects