with single short leads

Industry

  • CPC
  • B43K19/006
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Patents Grantslast 30 patents

  • Information Patent Grant

    Art medium surface treatment tool

    • Patent number 10,195,894
    • Issue date Feb 5, 2019
    • Jacob G Bussie
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Method and apparatus for extending and retracting the writing eleme...

    • Patent number 9,944,111
    • Issue date Apr 17, 2018
    • James Michael Elmore
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Offset pen structure for rapid assembling

    • Patent number 7,665,921
    • Issue date Feb 23, 2010
    • Bao-Shen Liu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument

    • Patent number 5,044,804
    • Issue date Sep 3, 1991
    • Pioneer Industrial Corp.
    • Cheng-Hwa Chuang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing implement and kit

    • Patent number 4,515,492
    • Issue date May 7, 1985
    • Chen J. Shan
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3112561

    • Patent number 3,112,561
    • Issue date Dec 3, 1963
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents