Attributions
The files and metadata on this page have been mirrored with permission from The Telecom Archive.
Bell System Practices | |
|---|---|
| Division | 028 |
| Description | Autotransformers, Bells, Buzzers, Dials, Dial Adapters and Mountings, Gongs, Head Telephone Sets, Headsets, Potentiometers, Rheostats, Ringers, and Sounders |
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