A telephone circuit consisting primarily of telephone relays and associated telephone equipment designed for use in connection with a straight-forward trunk circuit to provide straight-forward signaling facilities on a two wire basis where telephone carrier equipment is not used.
Classification: Articles designed for connection to telegraphic or telephonic apparatus or instruments or to telegraphic or telephonic networks
NSN 6220-01-438-3488
NSN 5985-01-429-0876
NSN 4140-01-421-1132
NSN 5935-01-107-9765
NSN 5910-00-144-4383
NSN 5925-00-272-8898
NSN 4140-01-052-1378
NSN 5915-01-165-5332
NSN 7035-00-232-4043
NSN 2925-00-422-5159
NSN 5975-01-240-3256
NSN 5835-01-384-3206