Electrical and scientific apparatus Trademarks Filed in December 11, 1970
ENVIRONMENT/ONE
Filed: December 11, 1970
[FIRE DETECTION AND ALARM SYSTEMS]
Owned by: ENVIRONMENT/ONE CORPORATION
Serial Number: 72378413
TONE TRACE 1
Filed: December 11, 1970
SOLID STATE TESTING INSTRUMENT FOR CHECKING THE CONTINUITY OF TRUNKS OR TO TRACE CABLE PAIRS FOR USE ON CENTRAL OFFICE TELEPHONE…
Owned by: COMMUNICATION MFG. CO.
Serial Number: 72378427
