21 ELECTRONIC SECURITY PREMISE PROTECTION SYSTEMS, COMPRISING PERIMETER INTRUSION DETECTION CIRCUITS, HOLDUP ALARM CIRCUITS, AND/OR AUDIO DETECTION AND ACTUATED CIRCUITS, FOR INTERCONNECTION BETWEEN A PROTECTED PREMISE AND A CENTRAL STATION
26 SIMULATOR FOR DEMONSTRATING THE OPERATION OF ELECTRONIC SECURITY PREMISE PROTECTION SYSTEMS, AND TEST UNIT FOR TESTING THE OPERATION OF ELECTRONIC SECURITY PREMISE PROTECTION SYSTEMS
Trademark Events
Feb 13, 1995
Expired Sec. 9
Apr 21, 1980
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.