TR TUNNEL RADIO OF AMERICA
Filed: August 23, 1993
radio transmitters and receivers for underground use
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 74428281
TUNNEL OPTIC
Distributed antenna system that utilizes fiber optic technology to extend broadband radio frequencies in zones that are…
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 76269811
TUNNEL VOICE FD4
Distributed antenna system that extends two-way radio communications into zones that are normally shielded from coverage…
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 76279346
MINE-STAT
Monitoring and control system that consists of wireless hardware and software that use surface or underground radio networks…
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 76279347
TUNNEL RADIO LINK
distributed antenna system, specifically for railroad and mass transit, that extends two way wireless data and voice signals…
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 76279348
SAT-TRAC
Integrated dispatch system designed to communicate position location by two way radio link Also provides GPS based location…
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 76279349
NETCOMM
Ethernet broadband network that integrates IP based periferal devices such as digital routers and/or switches, VoIP, RoIP…
Owned by: TUNNEL RADIO OF AMERICA, INC.
Serial Number: 77111522
