TREA

with legs formed by flat springs

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Industry

  • CPC
  • B43L9/06
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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 B43L9/00Circular curve-drawing or like instruments

Current Industry

B43L9/06with legs formed by flat springs
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3394460
    • Patent number 3,394,460
    • Issue date Jul 30, 1968
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3335497
    • Patent number 3,335,497
    • Issue date Aug 15, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3197871
    • Patent number 3,197,871
    • Issue date Aug 3, 1965
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3190001
    • Patent number 3,190,001
    • Issue date Jun 22, 1965
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2454305
    • Patent number 2,454,305
    • Issue date Nov 23, 1948
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1779725
    • Patent number 1,779,725
    • Issue date Oct 28, 1930
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1734613
    • Patent number 1,734,613
    • Issue date Nov 5, 1929
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1716782
    • Patent number 1,716,782
    • Issue date Jun 11, 1929
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES