Details for 20apr Bell Telephone News - Chicago TelCo - Machine Switching Ocr R

20apr Bell Telephone News - Chicago TelCo - Machine Switching Ocr R
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Name:20apr Bell Telephone News - Chicago TelCo - Machine Switching Ocr R
Description:

April 1920. Chicago Telephone Company. Feature article on Machine Switching in the Bell System.  Contributed by Steve Cichorsky. OCR by Clint Gilliland.

Filename:20apr_Bell_Telephone_News_-_Chicago_TelCo_Machine_Switching_ocr_r.pdf
Filesize: 5.32 MB
Filetype:pdf (Mime Type: application/pdf)
Creator:paul-f
Created On: 03/07/2014 19:43
Hits:2000 Hits
Last updated on: 03/07/2014 19:56