TREA

with cranked handles

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  • CPC
  • B43L23/04
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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

B43L23/04with cranked handles
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Pencil sharpener
    • Patent number 11,273,666
    • Issue date Mar 15, 2022
    • Samir Moufawad Moufawad
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 10,906,347
    • Issue date Feb 2, 2021
    • OSAKA CLIP co., LTD.
    • Kazuo Itoi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Adjustable pencil sharpener
    • Patent number 9,248,691
    • Issue date Feb 2, 2016
    • SDI Corporation
    • Szu-Yu Chen
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Hand-cranked pencil sharpeners
    • Patent number 8,459,317
    • Issue date Jun 11, 2013
    • Yurisheng Electronic (Shenzhen) Co., Ltd
    • Jingyi Hu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 6,334,475
    • Issue date Jan 1, 2002
    • Wilhelm Dahle Büro-technik GmbH & Co. KG
    • Thomas Schultheiss
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Sucking on device which is easily to be lifted but is not easily ge...
    • Patent number 5,076,527
    • Issue date Dec 31, 1991
    • Lan Yung-Huei
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 4,759,129
    • Issue date Jul 26, 1988
    • Anthony J. Alpha
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Lead-pencil sharpener
    • Patent number 3,998,253
    • Issue date Dec 21, 1976
    • Richard A. Kerr
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpener
    • Patent number 3,980,113
    • Issue date Sep 14, 1976
    • Hasbro Development Corporation
    • John D. Birdsall
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Single cutter pencil sharpener
    • Patent number 3,973,604
    • Issue date Aug 10, 1976
    • Hunt Manufacturing Co.
    • Walter B. Lincoln
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pencil sharpeners
    • Patent number 3,965,949
    • Issue date Jun 29, 1976
    • Joseph Gillott & Sons Limited
    • Jack Ralph Aston
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3750724
    • Patent number 3,750,724
    • Issue date Aug 7, 1973
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3675886
    • Patent number 3,675,886
    • Issue date Jul 11, 1972
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3410169
    • Patent number 3,410,169
    • Issue date Nov 12, 1968
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3326190
    • Patent number 3,326,190
    • Issue date Jun 20, 1967
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3279437
    • Patent number 3,279,437
    • Issue date Oct 18, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3227140
    • Patent number 3,227,140
    • Issue date Jan 4, 1966
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3224418
    • Patent number 3,224,418
    • Issue date Dec 21, 1965
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    3125994
    • Patent number 3,125,994
    • Issue date Mar 24, 1964
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2979031
    • Patent number 2,979,031
    • Issue date Apr 11, 1961
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2915271
    • Patent number 2,915,271
    • Issue date Dec 1, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2896578
    • Patent number 2,896,578
    • Issue date Jul 28, 1959
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2853053
    • Patent number 2,853,053
    • Issue date Sep 23, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2818834
    • Patent number 2,818,834
    • Issue date Jan 7, 1958
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2714369
    • Patent number 2,714,369
    • Issue date Aug 2, 1955
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2709990
    • Patent number 2,709,990
    • Issue date Jun 7, 1955
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2688312
    • Patent number 2,688,312
    • Issue date Sep 7, 1954
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2624317
    • Patent number 2,624,317
    • Issue date Jan 6, 1953
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2615426
    • Patent number 2,615,426
    • Issue date Oct 28, 1952
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    2591756
    • Patent number 2,591,756
    • Issue date Apr 8, 1952
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    PENCIL SHARPENER
    • Publication number 20190126664
    • Publication date May 2, 2019
    • OSAKA CLIP co., LTD
    • Kazuo ITOI
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    ADJUSTABLE PENCIL SHARPENER
    • Publication number 20140000119
    • Publication date Jan 2, 2014
    • SDI Corporation
    • Szu-Yu CHEN
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    AUTOMATIC PENCIL-FEEDING DEVICE FOR PENCIL SHARPENER
    • Publication number 20130255835
    • Publication date Oct 3, 2013
    • FUJIAN SOUNDY ENTERPRISE CO., LTD.
    • Xinfu Wang
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    PENCIL SHARPENER
    • Publication number 20130147104
    • Publication date Jun 13, 2013
    • CARL MFG. CO., LTD.
    • Takeshi Saito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Hand-Cranked Pencil Sharpeners
    • Publication number 20110226383
    • Publication date Sep 22, 2011
    • Yurisheng Electronic (Shenzhen) Co., Ltd.
    • Jingyi Hu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Pencil sharpener
    • Publication number 20070074409
    • Publication date Apr 5, 2007
    • Chia Wen Hsu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES