SPEEDCALL
Filed: March 22, 1972
ELECTRICAL COMMUNICATIONS APPARATUS-NAMELY, DUAL-TONE MULTI-FREQUENCY CIRCUITS FOR TELE-COMMUNICATIONS
Owned by: SPEEDCALL CORPORATION
Serial Number: 72419144
S
Filed: September 11, 1974
ELECTRICAL SIGNALLING APPARATUS FOR RADIO, TELEPHONE, WIRE LINE, AND CONTROL APPARATUS AND COMPONENTS OF SUCH APPARATUS
Owned by: SPEEDCALL CORPORATION
Serial Number: 73031752
SPEEDTRACK
Filed: December 4, 1989
COMPUTER SOFTWARE USED FOR DISPATCHING FLEETS OF CONCRETE AND AGGREGATE TRUCKS AND SERVICE VEHICLES
Owned by: SPEEDCALL CORPORATION
Serial Number: 74007280
SPEEDCALL
Filed: April 9, 1996
electrical apparatus for telecommunication signaling and control, namely, automatic telephone dialers, GPS receivers for…
Owned by: SPEEDCALL CORPORATION
Serial Number: 75085798
