pdf 74sep BTM p10 - PhoneCenter Concept Grows Popular
By Paul F 237 downloads
74sep_BTM_p10_Phonecenter_Concept_Grows_tci.pdf
Bell Telephone Magazine, Sep. 1974. Established in 1970, there were 32 Bell System PhoneCenters in 1974 and 34 more under development. Modular wiring, pre-wiring and simple do-it-yourself methods were important factors. (phone center) Contributed by Paul Fassbender.
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