TREA

with rasping surfaces

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  • CPC
  • B43L23/006
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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 B43L23/00Sharpeners for pencils or leads

Current Industry

B43L23/006with rasping surfaces
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Electric pencil sharpener
    • Patent number 10,703,129
    • Issue date Jul 7, 2020
    • NINGBO WEISHU STATIONERY CO., LTD
    • Changhai Dai
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pastel stick sharpener
    • Patent number 7,229,038
    • Issue date Jun 12, 2007
    • Jerry's Artarama
    • Raymond Givonetti
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Apparatus and method for abrading pencil lead
    • Patent number 4,237,945
    • Issue date Dec 9, 1980
    • Ting-Fu Peng
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Disposable device for sharpening leads or the like
    • Patent number 3,991,798
    • Issue date Nov 16, 1976
    • Robert M. Grosjean
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3667516
    • Patent number 3,667,516
    • Issue date Jun 6, 1972
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3276434
    • Patent number 3,276,434
    • Issue date Oct 4, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3254630
    • Patent number 3,254,630
    • Issue date Jun 7, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3223073
    • Patent number 3,223,073
    • Issue date Dec 14, 1965
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3208435
    • Patent number 3,208,435
    • Issue date Sep 28, 1965
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3115869
    • Patent number 3,115,869
    • Issue date Dec 31, 1963
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3114352
    • Patent number 3,114,352
    • Issue date Dec 17, 1963
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3099253
    • Patent number 3,099,253
    • Issue date Jul 30, 1963
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3092081
    • Patent number 3,092,081
    • Issue date Jun 4, 1963
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3042003
    • Patent number 3,042,003
    • Issue date Jul 3, 1962
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2999481
    • Patent number 2,999,481
    • Issue date Sep 12, 1961
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2926632
    • Patent number 2,926,632
    • Issue date Mar 1, 1960
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2926633
    • Patent number 2,926,633
    • Issue date Mar 1, 1960
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2895453
    • Patent number 2,895,453
    • Issue date Jul 21, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2895452
    • Patent number 2,895,452
    • Issue date Jul 21, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2876741
    • Patent number 2,876,741
    • Issue date Mar 10, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2857883
    • Patent number 2,857,883
    • Issue date Oct 28, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2851009
    • Patent number 2,851,009
    • Issue date Sep 9, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2791986
    • Patent number 2,791,986
    • Issue date May 14, 1957
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2738768
    • Patent number 2,738,768
    • Issue date Mar 20, 1956
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2716964
    • Patent number 2,716,964
    • Issue date Sep 6, 1955
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2713849
    • Patent number 2,713,849
    • Issue date Jul 26, 1955
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2708423
    • Patent number 2,708,423
    • Issue date May 17, 1955
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2686496
    • Patent number 2,686,496
    • Issue date Aug 17, 1954
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2662504
    • Patent number 2,662,504
    • Issue date Dec 15, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2653576
    • Patent number 2,653,576
    • Issue date Sep 29, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES