Ping-Y. Chao

Person

  • Kaohsiung, TW

Patents Grantslast 30 patents

  • Information Patent Grant

    Structure for a mortise lock

    • Patent number 6,003,351
    • Issue date Dec 21, 1999
    • National Science Council of Republic of China
    • Ping-Y. Chao
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES