TELEPATCHER
Filed: November 10, 1971
TELEPHONE INTERCONNECTION EQUIPMENT, COMPRISING TELEPHONE PATCHING, BRIDGING, CROSS-CONNECTING AND CONFERENCE APPARATUS…
Owned by: TELEPHONIC EQUIPMENT CORPORATION
Serial Number: 72407351
TOLL CONTROL
Filed: November 10, 1971
TELEPHONE AND ELECTRICAL COMMUNICATION EQUIPMENT - NAMELY, TELEPHONE TRUNKS OR SINGLE LINE EXTENSION DISCONNECTING APPARATUS…
Owned by: TELEPHONIC EQUIPMENT CORPORATION
Serial Number: 72407353
DATAPATCHER
Filed: June 4, 1976
MODULES, MULTI-BUTTON AND SINGLE BUTTON HAND SETS AND CONFERENCING ELECTRICAL BOARDS FOR CONNECTING AT LEAST TWO TRUNK LINES…
Owned by: TELEPHONIC EQUIPMENT CORPORATION
Serial Number: 73089440
COLUMBIA TELEPHONE
Filed: May 23, 1983
TELEPHONE EQUIPMENT, NAMELY, TELEPHONE RECEIVERS AND SWITCHING CIRCUITRY, CALL SEQUENCERS, CALL DISTRIBUTORS, LINE INSERTION…
Owned by: TELEPHONIC EQUIPMENT CORPORATION
Serial Number: 73426988
