Name Size Creator Creation Date Labels Comment  
PDF File 1218048.pdf 1.57 MB Shaun Ewing Mar 06, 1917 00:00
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US-1218048-A // Automatic selecting-switch. // John G. Blessing // Automatic Electric Co
PDF File 1113649.pdf 1.57 MB Shaun Ewing Oct 13, 1914 00:00
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US-1113649-A // Non-interfering extension or party-line telephone system. // Leo Keller // Automatic Electric Co
PDF File 1242164.pdf 1.54 MB Shaun Ewing Oct 09, 1917 00:00
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US-1242164-A // Semi-automatic telephone system. // Edward D. Fales // Automatic Electric Co
PDF File 1190185.pdf 1.52 MB Shaun Ewing Jul 04, 1916 00:00
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US-1190185-A // Automatic telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1209303.pdf 1.52 MB Shaun Ewing Dec 19, 1916 00:00
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US-1209303-A // Multiple-dial calling device. // Alexander E. Keith // Automatic Electric Co
PDF File 1295175.pdf 1.50 MB Shaun Ewing Feb 25, 1919 00:00
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US-1295175-A // Automatic telephone switching apparatus. // Alexander E. Keith ; John G. Blessing // Automatic Electric Co
PDF File 1176269.pdf 1.49 MB Shaun Ewing Mar 21, 1916 00:00
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US-1176269-A // Telephone-repeater. // Albert H. Blessing // Automatic Electric Co
PDF File 1245650.pdf 1.49 MB Shaun Ewing Nov 06, 1917 00:00
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US-1245650-A // Automatic telephone system. // Bernard D. Willis // Automatic Electric Co
PDF File 1158221.pdf 1.46 MB Shaun Ewing Oct 26, 1915 00:00
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US-1158221-A // Party-line telephone system. // Henry Hovland // Automatic Electric Co
PDF File 1214969.pdf 1.43 MB Shaun Ewing Feb 06, 1917 00:00
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US-1214969-A // Measured-service telephone system. // Samuel S. Stolp // Automatic Electric Co
PDF File 1217510.pdf 1.40 MB Shaun Ewing Feb 27, 1917 00:00
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US-1217510-A // Telephone trunking system. // Michael Schwartz // Automatic Electric Co
PDF File 1230694.pdf 1.39 MB Shaun Ewing Jun 19, 1917 00:00
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US-1230694-A // Two-wire to three-wire telephone system. // Edward D. Fales // Automatic Electric Co
PDF File 1280782.pdf 1.39 MB Shaun Ewing Oct 08, 1918 00:00
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US-1280782-A // Automatic release for telephone systems. // Fritz Lubberger // Automatic Electric Co
PDF File 831846.pdf 1.38 MB Shaun Ewing Sept 25, 1906 00:00
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US-831846-A // Automatic telephone system. // John Erickson // Automatic Electric Co
PDF File 1254083.pdf 1.38 MB Shaun Ewing Jan 22, 1918 00:00
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US-1254083-A // Measured-service telephone system. // Samuel S. Stolp // Automatic Electric Co
PDF File 1251023.pdf 1.38 MB Shaun Ewing Dec 25, 1917 00:00
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US-1251023-A // Automatic telephone system. // Harry E. Hershey // Automatic Electric Co
PDF File 1264137.pdf 1.38 MB Shaun Ewing Apr 30, 1918 00:00
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US-1264137-A // Measured-service telephone system. // Albert Andersen // Automatic Electric Co
PDF File 1356626.pdf 1.37 MB Shaun Ewing Oct 26, 1920 00:00
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US-1356626-A // Selective signaling system // Hulit John A. // Automatic Electric Co
PDF File 1209826.pdf 1.34 MB Shaun Ewing Dec 26, 1916 00:00
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US-1209826-A // Telephone system. // John Erickson // Automatic Electric Co
PDF File 1284242.pdf 1.34 MB Shaun Ewing Nov 12, 1918 00:00
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US-1284242-A // Semi-automatic telephone system. // George A. Yanochowski // Automatic Electric Co
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