Inventor
ELPERN STEPHEN R
US4 patents
Patents
4 patentsUS6282931B1Sep 4, 2001
Electrically operated actuator and method
ACCESS TECHNOLOGIES INC71 citations94
US6089058AJul 18, 2000
Method for retrofitting a deadbolt assembly with an electrically operated actuator
ACCESS TECHNOLOGIES INC69 citations94
US5979199ANov 9, 1999
Electrically operated actuator
ACCESS TECHNOLOGIES INC71 citations94
US5896769AApr 27, 1999
Electrically operated actuator
ACCESS TECHNOLOGIES INC27 citations91