TREA

Erasing knives

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Industry

  • CPC
  • B43L19/02
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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 B43L19/00Erasers, rubbers, or erasing devices Holders therefor

Current Industry

B43L19/02Erasing knives
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Erasing knife
    • Patent number 4,249,306
    • Issue date Feb 10, 1981
    • Bengt A. Benson
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3522653
    • Patent number 3,522,653
    • Issue date Aug 4, 1970
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2147561
    • Patent number 2,147,561
    • Issue date Feb 14, 1939
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1777812
    • Patent number 1,777,812
    • Issue date Oct 7, 1930
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1634120
    • Patent number 1,634,120
    • Issue date Jun 28, 1927
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents