Telephones: 1907

Telephones: 1907

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It indicates for each census in which states more than half of the exchanges were of the Bell system, and in which more than half were ... Three kinds of boards are shown: The manual common-battery, the manual magneto, and the automatic. ... 837 156.4 Magneto 13, 801 10, 005 37.9 Automatic 118 54 118.5 Total equipped capacity of subscribersa#39; switchboards, drops or jacks 4, 223, 303 2, 447, 403 72.6anbsp;...

Title:Telephones: 1907
Author: United States. Bureau of the Census, William Mott Steuart, Thomas Commerford Martin, Franklin H. Reed
Publisher: - 1910

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