74472075
Dec 21, 1993
May 28, 1996
home security alarm systems comprising motion or body sensors and parts therefor; monitoring cameras; intercoms; video phones; cable connection television cameras for observation; radio receivers, television receivers, record players, tape recorders, video tape recorders, compact disc players; electronic automatic door openers and closers; other burglar preventive devices, namely a radio frequency modulator which conveys signals from a camera to a television receiver; and computers
Electrical and Scientific Apparatus