Liao Ching-Shui

Person

  • Taipei, TW

Patents Grantslast 30 patents

  • Information Patent Grant

    Key unit of a keyboard

    • Patent number 5,456,541
    • Issue date Oct 10, 1995
    • Liao Ching-Shui
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS