Inventor
CLARKSON BRUCE A
US6 patents
Patents
6 patentsUS4789859ADec 6, 1988
Electronic locking system and key therefor
EMHART IND197 citations96
US4848115AJul 18, 1989
Electronic locking system and key therefor
EMHART IND128 citations95
US4835521AMay 30, 1989
Fluid status detector
EMHART IND103 citations95
US4712398ADec 15, 1987
Electronic locking system and key therefor
EMHART IND145 citations95
US4855714AAug 8, 1989
Fluid status detector
EMHART IND36 citations88
US4831360AMay 16, 1989
Fluid status detector
EMHART IND6 citations58