TREA

mounted on parallel-motion drawing appliances

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  • CPC
  • B43L13/143
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for

Current Industry

B43L13/143mounted on parallel-motion drawing appliances
Industries

Patents Grantslast 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