TREA

Multiple writing devices

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  • CPC
  • B43L13/12
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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

B43L13/12Multiple writing devices
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Multiple line writing instrument
    • Patent number 5,116,153
    • Issue date May 26, 1992
    • Paul R. Tully
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Duplicating drawing apparatus
    • Patent number 4,733,473
    • Issue date Mar 29, 1988
    • Adolph E. Goldfarb
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3775852
    • Patent number 3,775,852
    • Issue date Dec 4, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3762054
    • Patent number 3,762,054
    • Issue date Oct 2, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3750292
    • Patent number 3,750,292
    • Issue date Aug 7, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3721008
    • Patent number 3,721,008
    • Issue date Mar 20, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3405447
    • Patent number 3,405,447
    • Issue date Oct 15, 1968
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3157950
    • Patent number 3,157,950
    • Issue date Nov 24, 1964
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2344200
    • Patent number 2,344,200
    • Issue date Mar 14, 1944
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2090443
    • Patent number 2,090,443
    • Issue date Aug 17, 1937
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2088161
    • Patent number 2,088,161
    • Issue date Jul 27, 1937
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2013681
    • Patent number 2,013,681
    • Issue date Sep 10, 1935
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1965112
    • Patent number 1,965,112
    • Issue date Jul 3, 1934
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1802651
    • Patent number 1,802,651
    • Issue date Apr 28, 1931
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1695457
    • Patent number 1,695,457
    • Issue date Dec 18, 1928
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1609903
    • Patent number 1,609,903
    • Issue date Dec 7, 1926
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1609648
    • Patent number 1,609,648
    • Issue date Dec 7, 1926
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1595759
    • Patent number 1,595,759
    • Issue date Aug 10, 1926
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1504610
    • Patent number 1,504,610
    • Issue date Aug 12, 1924
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1422925
    • Patent number 1,422,925
    • Issue date Jul 18, 1922
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1268523
    • Patent number 1,268,523
    • Issue date Jun 4, 1918
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1230872
    • Patent number 1,230,872
    • Issue date Jun 26, 1917
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1131451
    • Patent number 1,131,451
    • Issue date Mar 9, 1915
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1130087
    • Patent number 1,130,087
    • Issue date Mar 2, 1915
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1100513
    • Patent number 1,100,513
    • Issue date Jun 16, 1914
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1080347
    • Patent number 1,080,347
    • Issue date Dec 2, 1913
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1080346
    • Patent number 1,080,346
    • Issue date Dec 2, 1913
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1073240
    • Patent number 1,073,240
    • Issue date Sep 16, 1913
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1066117
    • Patent number 1,066,117
    • Issue date Jul 1, 1913
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    1066118
    • Patent number 1,066,118
    • Issue date Jul 1, 1913
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents