75138472
Jul 23, 1996
Aug 18, 1998
microwave frequency detectors; outside microwave frequency barriers comprising microwave receiver and microwave transmitter; electronic locks and controls; telephone transmitters; point to point transmitters-receivers; outside and inside self-protected electronic sirens; power supplies for battery chargers; electric cables, batteries and parts therefor; infrared detectors; electronic burglar and fire control panels
Electrical and Scientific Apparatus