Telephony's directory of the telephone industry.

Bibliographic Details
New Title:	Telephony's directory & buyers' guide for the telephone industry
Previous Title:	Telephony's directory of telephone exchanges, with a supplementary list of telephone and kindred manufacturers
Format:	Journal
Language:	English
Published:	Chicago : Telephony Publishing corporation, [1977-1978?]
Subjects:	Telephone > Directories.
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