Gua Hua Liu

Person

  • Zhongshan City, Guangdong, CN

Patents Grantslast 30 patents

  • Information Patent Grant

    Lock mechanism

    • Patent number 7,596,975
    • Issue date Oct 6, 2009
    • Zhi Man Yuan
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES