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mounted on parallel-motion drawing appliances
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CPC
B43L13/143
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B43
Writing accessories
B43L
ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
B43L13/00
Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
Current Industry
B43L13/143
mounted on parallel-motion drawing appliances
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Patents Grants
last 30 patents
Information
Patent Grant
Drafting instrument
Patent number
4,403,423
Issue date
Sep 13, 1983
Alan T. Ford
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Universal parallel ruler for three-dimensional drawing
Patent number
4,233,751
Issue date
Nov 18, 1980
Asahi Seimitsu Kabushiki Kaisha
Masao Koenuma
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Apparatus for drafting inaccurate conic perspective
Patent number
4,117,599
Issue date
Oct 3, 1978
Societe de Recherches et de Promotion d'Activities Nouvelles Acno
Jean Tavernier
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3867762
Patent number
3,867,762
Issue date
Feb 25, 1975
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3826007
Patent number
3,826,007
Issue date
Jul 30, 1974
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3596361
Patent number
3,596,361
Issue date
Aug 3, 1971
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3318003
Patent number
3,318,003
Issue date
May 9, 1967
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3300863
Patent number
3,300,863
Issue date
Jan 31, 1967
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3296701
Patent number
3,296,701
Issue date
Jan 10, 1967
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
2665486
Patent number
2,665,486
Issue date
Jan 12, 1954
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
2531636
Patent number
2,531,636
Issue date
Nov 28, 1950
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
2454380
Patent number
2,454,380
Issue date
Nov 23, 1948
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
2380073
Patent number
2,380,073
Issue date
Jul 10, 1945
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents