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Folder Miscellaneous Textbooks and Publications

Documents

pdf Telephony (book), 1938, Tones And Ringing Popular

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Tones and Ringing.pdf

Telephony (book), 1938, Tones And Ringing

T. E. Herbert, 1938 - pp 33-35: Tones Provided in an Automatic Exchange, pp 181-189: Ringing Machines.

pdf The Faller Automatic System - 1902 Popular

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The Faller Automatic System - 1902.pdf

pdf Unification of the Manual and Automatic Telephone Systems - 1919 Popular

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19sep_TelegraphAndTelephoneAge_Unification_of_Los_Angeles_Automatic_Manual_Telephone_Systems.pdf

Unification of the Manual and Automatic Telephone Systems - 1919
Contributed by Steve Cichorsky

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