Richard Maks

Person

  • Chicago, IL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic door opener

    • Patent number 4,674,231
    • Issue date Jun 23, 1987
    • Ready Metal Manufacturing Company
    • John R. Radek
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES