Donald D. Wenk

Person

  • Brookville, NY, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Bag seal

    • Patent number 4,306,745
    • Issue date Dec 22, 1981
    • American Casting & Mfg. Corp.
    • Donald D. Wenk
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS