TREA

Frederic D. R. Sparrevohn

Follow

Person

  • Long Beach, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Security latch
    • Patent number 4,119,336
    • Issue date Oct 10, 1978
    • Frederic D. R. Sparrevohn
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES