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American Telephone and Telegraph Company
Ho
How to Operate the No. 28 Keyboard Sending and Page Receiving [KSR] Teletypewriter on Teletypewriter Exchange Service
· 1962

How to Operate the No. 28 Keyboard Sending and Page Receiving [KSR] Teletypewriter on Teletypewriter Exchange Service

American Telephone and Telegraph Company
FoundryAmerican Telephone and Telegraph Company
Published1962
SourceInternet Archive
RightsPublic domain
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