Telephones and telegraphs: 1902 : [and Municipal electric fire alarm and police patrol systems] (1906)
United States. Bureau of the Census, Steuart, William Mott, 1861-, Martin, Thomas Commerford, 1856-1924, Abbott, Arthur Vaughan, 1854-, Mayer, William · Washington : Govt. Print. Off. · leaf 60
FIQ 2.—SECTION OF TRANSMITTER. FIQ. 3.—REAR VIEW OF ASSEMBLED TRANSMITTER.CASE REMOVED. APPARATUS OF THE SUBSTATION. 35 Table 39.—Number of rural lines, witK the wire mileage and the num-ber cf telephones, for the Jive leading states: 1902. LINES. MILES OF WIRE. TELEPHONES. Number. Rank. Number.…
Telephone · Telegraph · Fire alarms
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