Details for Telephony (book), 1938, Tones And Ringing

Telephony (book), 1938, Tones And Ringing
PropertyValue
Name:Telephony (book), 1938, Tones And Ringing
Description:

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

Filename:Tones and Ringing.pdf
Filesize: 6.24 MB
Filetype:pdf (Mime Type: application/pdf)
Creator:remco-e
Created On: 10/28/2009 13:58
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Last updated on: 11/12/2009 12:42