Year Book of the State of Colorado
Long distance wire circuits and carrier systems were constructed to take care of the increased load of out-of-town calls. ... Radio telephone service between a Bell System exchange and a connecting company was established for the first time in history ... While population has increased about 16 per cent, telephones have gained 94 per cent. ... COMMUNITY ORGANIZATIONS IN COLORADO Chambers of Commerce and Civic Clubs COMMUNICATIONS a 427 O RG AN I Z A TION S.
| Title | : | Year Book of the State of Colorado |
| Author | : | |
| Publisher | : | - 1940 |
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