TREA

Eraser shields

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Industry

  • CPC
  • B43L19/0093
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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

B43L19/0093Eraser shields
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2522111
    • Patent number 2,522,111
    • Issue date Sep 12, 1950
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2194955
    • Patent number 2,194,955
    • Issue date Mar 26, 1940
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2134688
    • Patent number 2,134,688
    • Issue date Nov 1, 1938
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2036090
    • Patent number 2,036,090
    • Issue date Mar 31, 1936
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1969603
    • Patent number 1,969,603
    • Issue date Aug 7, 1934
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1954149
    • Patent number 1,954,149
    • Issue date Apr 10, 1934
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1415088
    • Patent number 1,415,088
    • Issue date May 9, 1922
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES