Details for C71.909 IA PTT Jan57 - Service Observing For TelCo Business Offices

C71.909 IA PTT Jan57 - Service Observing For TelCo Business Offices
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Name:C71.909 IA PTT Jan57 - Service Observing For TelCo Business Offices
Description:

Issue A, January 1957.  Pacific Tel & Tel.  Includes 101-type key units.  Contributed by Steve Cichorsky.

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Created On: 12/26/2013 11:37
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Last updated on: 12/26/2013 11:41