76139344
Oct 3, 2000
Apr 9, 2002
NEIGHBORHOOD WATCH AND ALERT SYSTEMS COMPRISING PERSONALLY IDENTIFIABLE WIRELESS ALARM TRANSMITTERS CARRIED BY RESIDENTS OF A PROTECTED AREA IN THE FORM OF AN ATTACHMENT TO A KEY CHAIN, OR WORN AS A PENDANT OR WRISTBAND, AND MOUNTED ALARM CONTROL UNITS FOR RECEIVING SIGNALS FROM THE ALARM TRANSMITTERS AND ISSUING AN ALARM SIGNAL
Electrical and Scientific Apparatus