Hansan Ma

Person

  • Hoffman Estates, IL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Portable security box

    • Patent number 4,573,332
    • Issue date Mar 4, 1986
    • Idesign, Inc.
    • Hansan Ma
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES