78169837
Oct 1, 2002
Jun 8, 2004
Wireless transmitters and receivers, namely, battery and/or wall plugable transmitters which transmit wireless alarm signals to remotely located battery and/or wall plugable receivers which emit alarms, namely, audible and/or visual emissions that are activated when telephones, portable phones, cellular phones, pagers and/or personal computers are receiving calls and/or messages
Electrical and Scientific Apparatus