for components of the means protecting the mechanism from external influences

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for fabricating a watch case

    • Patent number 4,382,172
    • Issue date May 3, 1983
    • Citizen Watch Co., Ltd.
    • Tsuneji Takasugi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    3101637

    • Patent number 3,101,637
    • Issue date Aug 27, 1963
    • G04 - HOROLOGY
  • Information Patent Grant

    2449791

    • Patent number 2,449,791
    • Issue date Sep 21, 1948
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    1520594

    • Patent number 1,520,594
    • Issue date Dec 23, 1924
    • G04 - HOROLOGY

Patents Applicationslast 30 patents