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File:Fig05-WesternElectricBatteryPhone1892.png

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Fig05-WesternElectricBatteryPhone1892.png(336 × 484 pixels, file size: 183 KB, MIME type: image/png)

Western Electric common battery set, with Anthony C. White’s solid-back transmitter, U.S. Patent 485,311, issued 1 November 1892. Courtesy AT&T Archives and History Center.

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current16:06, 12 April 2013Thumbnail for version as of 16:06, 12 April 2013336×484 (183 KB)Administrator7 (Talk | contribs) (Western Electric common battery set, with Anthony C. White’s solid-back transmitter, U.S. Patent 485,311, issued 1 November 1892. Courtesy AT&T Archives and History Center.)

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