HETRO
Filed: November 13, 1979
Electronic Circuits Sold as Components of Vehicle Warning Systems
Owned by: Dunbar Nunn Corporation
Serial Number: 73238874
UNITROL
Filed: November 15, 1979
Electronic Sirens for Emergency Vehicles, Switching and Control Consoles for Switching Different Emergency Vehicle Devices…
Owned by: Dunbar Nunn Corporation
Serial Number: 73239367
D/N UNITROL
Filed: May 12, 1981
Electronic Sirens for Emergency Vehicles, Switching and Control Consoles for Switching Different Emergency Vehicle Units…
Owned by: Dunbar Nunn Corporation
Serial Number: 73310191
QUADRA-SPEED FLASHER
Filed: January 17, 1986
ELECTRONIC EMERGENCY VEHICLE AND POLICE VEHICLE LIGHTING CONTROLLERS
Owned by: Dunbar Nunn Corporation
Serial Number: 73578251
LOCK
Filed: October 17, 1988
EMERGENCY VEHICLE MODULAR SIREN UNIT
Owned by: Dunbar Nunn Corporation
Serial Number: 73758156
SWEEP
Filed: October 17, 1988
EMERGENCY VEHICLE MODULAR SIREN UNIT
Owned by: Dunbar Nunn Corporation
Serial Number: 73758268
SIREN KILL
Filed: December 5, 1994
emergency vehicle electronic controllers and siren control modules for emergency vehicles to change an automatic siren tone…
Owned by: Dunbar Nunn Corporation
Serial Number: 74607249
LIGHT KILL
Filed: December 5, 1994
emergency vehicle electronic controller for controlling, deactivating and reactivating emergency vehicle lights
Owned by: Dunbar Nunn Corporation
Serial Number: 74607267
YELP OVERRIDE
Filed: April 29, 1996
electronic switching unit for providing a tone for electronic vehicle sirens
Owned by: Dunbar Nunn Corporation
Serial Number: 75096343
