TELEPROBE
Electronic Communications Testing Units for Use with Telephone Loops, Telephone Trunks, PABX Loops, PABX Trunks, Pair Gain Apparatuses, Pair Gain Loops, Data Circuits and Structural Components Thereof, Cellular Radio Circuits, Satellite Circuits, and Analog and Digital Transmission Facilities
Cancelled · September 28, 1982 · 73391248 ·