TREA

using copying or multiple drawing arrangements

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Industry

  • CPC
  • B43L13/148
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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

B43L13/148using copying or multiple drawing arrangements
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Adjustable grid drawing frame
    • Patent number 9,440,482
    • Issue date Sep 13, 2016
    • David Cunningham
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2559222
    • Patent number 2,559,222
    • Issue date Jul 3, 1951
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2553026
    • Patent number 2,553,026
    • Issue date May 15, 1951
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2171587
    • Patent number 2,171,587
    • Issue date Sep 5, 1939
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1826338
    • Patent number 1,826,338
    • Issue date Oct 6, 1931
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents