Non-flammable land and sea marker
Non-interlaced 263 TV line character generation system
Non-intrusive coupling to shielded power cable
Non-invasive powerline communications system
Non-verbal communication system for work stations
Notification system and method thereof
Novel bistable light modulators and display element and arrays t
Nuclear radiation apparatus and methods for surveying physical c
Numeral output system for circulating register
Numeric display configuration
Object touchdown and net contact detection systems and game appa
Occupancy simulator for home security
Office communication system
Officiating communication device
Officiating system
Oil level indicator
Oil well pump start-up alarm
Omnidirectional ultrasonic intrusion surveillance unit
On-board emergency reporting apparatus and auxiliary battery...
On-line serial communication interface from a transmitter to a c