Telephones

Manual / Guide · c. 1949

AE Training 800: Elementary Principles of Telephony, part 2

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Earlier edition excerpt of AE training 800.

Author
Automatic Electric Co.
Year
c. 1949
Type
Manual / Guide
Credit
Telephone Collectors International (TCI) Library, telephonecollectors.info (retrieved via Internet Archive Wayback Machine)

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AE Training 800: Elementary Principles of Telephony, part 2