Elihu K. Boyd

Person

  • Rising Sun, MD, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Portable door lock

    • Patent number 4,589,692
    • Issue date May 20, 1986
    • Hamilton; David R.
    • Elihu K. Boyd
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES