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  • CPC
  • B43L13/043
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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

B43L13/043with squares
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Drywall marking and scoring guide
    • Patent number 6,289,594
    • Issue date Sep 18, 2001
    • Randolph Wrobbel
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lettering scale
    • Patent number 4,262,428
    • Issue date Apr 21, 1981
    • Narendrakumar M. Patel
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cropping guide
    • Patent number 4,171,573
    • Issue date Oct 23, 1979
    • Anthony Picciotto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Universal drafting triangle
    • Patent number 4,121,344
    • Issue date Oct 24, 1978
    • Constantine C. Goussios
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3455029
    • Patent number 3,455,029
    • Issue date Jul 15, 1969
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3111765
    • Patent number 3,111,765
    • Issue date Nov 26, 1963
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3020642
    • Patent number 3,020,642
    • Issue date Feb 13, 1962
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2908082
    • Patent number 2,908,082
    • Issue date Oct 13, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2614360
    • Patent number 2,614,360
    • Issue date Oct 21, 1952
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2601727
    • Patent number 2,601,727
    • Issue date Jul 1, 1952
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2183214
    • Patent number 2,183,214
    • Issue date Dec 12, 1939
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1934969
    • Patent number 1,934,969
    • Issue date Nov 14, 1933
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1505873
    • Patent number 1,505,873
    • Issue date Aug 19, 1924
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1081161
    • Patent number 1,081,161
    • Issue date Dec 9, 1913
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    Scribing apparatus and method
    • Publication number 20020032969
    • Publication date Mar 21, 2002
    • Tobias M. Cardew
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    DRYWALL MARKING AND SCORING GUIDE
    • Publication number 20010020334
    • Publication date Sep 13, 2001
    • RANDOLPH WROBBEL
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES