TREA

Lawrence D. Butts

Follow

Person

  • Charlotte, NC, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Exit device
    • Patent number 4,598,939
    • Issue date Jul 8, 1986
    • Scovill Inc.
    • William A. Krupicka
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Keycard reader
    • Patent number 4,488,036
    • Issue date Dec 11, 1984
    • Scovill Inc.
    • Lawrence D. Butts
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Electrically controlled latch
    • Patent number 4,390,197
    • Issue date Jun 28, 1983
    • Scovill Inc.
    • Lawrence D. Butts
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES