BT-502222 Trunk Circuit - Outoing to Recording Operator - Special "A" Switchboard
Book details
- Title
- BT-502222 Trunk Circuit - Outoing to Recording Operator - Special "A" Switchboard
- Publication year listed
- 1921
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
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