TREA

of undulated hairpins

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Industry

  • CPC
  • B21G7/06
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21GMAKING NEEDLES, PINS OR NAILS OF METAL B21G7/00Making pins of U-like shape or split-pins

Current Industry

B21G7/06of undulated hairpins
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Hair clipping device
    • Patent number 10,226,811
    • Issue date Mar 12, 2019
    • TUNG HING PLASTIC MANUFACTORY LTD.
    • Ka Chuen Sze
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Hair clipping device
    • Patent number 9,642,431
    • Issue date May 9, 2017
    • TUNG HING PLASTIC MANUFACTORY LTD.
    • Ka Chuen Sze
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    2633876
    • Patent number 2,633,876
    • Issue date Apr 7, 1953
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2579990
    • Patent number 2,579,990
    • Issue date Dec 25, 1951
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2449263
    • Patent number 2,449,263
    • Issue date Sep 14, 1948
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2432339
    • Patent number 2,432,339
    • Issue date Dec 9, 1947
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2339462
    • Patent number 2,339,462
    • Issue date Jan 18, 1944
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1517834
    • Patent number 1,517,834
    • Issue date Dec 2, 1924
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1430331
    • Patent number 1,430,331
    • Issue date Sep 26, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1414080
    • Patent number 1,414,080
    • Issue date Apr 25, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1410675
    • Patent number 1,410,675
    • Issue date Mar 28, 1922
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1360234
    • Patent number 1,360,234
    • Issue date Nov 23, 1920
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    HAIR CLIPPING DEVICE
    • Publication number 20170181517
    • Publication date Jun 29, 2017
    • TUNG HING PLASTIC MANUFACTORY LTD.
    • Ka Chuen SZE
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    HAIR CLIPPING DEVICE
    • Publication number 20150230578
    • Publication date Aug 20, 2015
    • TUNG HING PLASTIC MANUFACTORY LTD.
    • Ka Chuen SZE
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...