TREA

David L. Michelman

Follow

Person

  • Queens, NY, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Tamper-proof locking device
    • Patent number 4,120,182
    • Issue date Oct 17, 1978
    • Michelman Iron Works Corp.
    • Lionel S. Michelman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tamper-proof locking device
    • Patent number 4,096,718
    • Issue date Jun 27, 1978
    • Michelman Iron Works Corp.
    • Lionel S. Michelman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tamper-proof locking device
    • Patent number 4,031,722
    • Issue date Jun 28, 1977
    • Michelman Iron Works Corporation
    • Lionel S. Michelman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES