Name Size Creator Creation Date Labels Comment  
PDF File 1145544.pdf 1.04 MB Shaun Ewing Jul 06, 1915 00:00
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US-1145544-A // Impulse-transmitting device. // John G. Blessing // Automatic Electric Co
PDF File 1134933.pdf 1.03 MB Shaun Ewing Apr 06, 1915 00:00
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US-1134933-A // Telephone switching apparatus. // Bernard D. Willis // Automatic Electric Co
PDF File 1115324.pdf 975 kB Shaun Ewing Oct 27, 1914 00:00
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US-1115324-A // Telephone release-insuring means. // Talbot G. Martin // Automatic Electric Co
PDF File 1295096.pdf 952 kB Shaun Ewing Feb 25, 1919 00:00
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US-1295096-A // Telephone system. // Albert Andersen // Automatic Electric Co
PDF File 834832.pdf 932 kB Shaun Ewing Oct 30, 1906 00:00
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US-834832-A // Means for charging storage batteries of telephone systems. // Talbot G. Martin // Automatic Electric Co
PDF File 1243749.pdf 930 kB Shaun Ewing Oct 23, 1917 00:00
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US-1243749-A // Measured-service telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1113354.pdf 926 kB Shaun Ewing Oct 13, 1914 00:00
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US-1113354-A // Automatic trunking system. // Alexander E. Keith // Automatic Electric Co
PDF File 1238705.pdf 904 kB Shaun Ewing Aug 28, 1917 00:00
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US-1238705-A // Substation-circuit. // Bernard D. Willis // Automatic Electric Co
PDF File 1209253.pdf 903 kB Shaun Ewing Dec 19, 1916 00:00
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US-1209253-A // Impulse-transmitting device. // John G. Blessing // Automatic Electric Co
PDF File 1160951.pdf 900 kB Shaun Ewing Nov 16, 1915 00:00
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US-1160951-A // Automatic trunking system. // Otto V. Olson // Automatic Electric Co
PDF File 851410.pdf 893 kB Shaun Ewing Apr 23, 1907 00:00
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US-851410-A // Electrothermal switch. // John Erickson // Automatic Electric Co
PDF File 1186817.pdf 889 kB Shaun Ewing Jun 13, 1916 00:00
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US-1186817-A // Semi-automatic telephone system. // Edward A. Mellinger // Automatic Electric Co
PDF File 1243761.pdf 870 kB Shaun Ewing Oct 23, 1917 00:00
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US-1243761-A // Automatic telephone system. // Frederick R. Quayle // Automatic Electric Co
PDF File 1175104.pdf 867 kB Shaun Ewing Mar 14, 1916 00:00
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US-1175104-A // Telephone system. // Bernard D. Willis // Automatic Electric Co
PDF File 1113937.pdf 862 kB Shaun Ewing Oct 13, 1914 00:00
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US-1113937-A // Telephone-testing system. // Edward A. Mellinger // Automatic Electric Co
PDF File 819073.pdf 850 kB Shaun Ewing May 01, 1906 00:00
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US-819073-A // Means for charging storage batteries of telephone systems. // Talbot G. Martin // Automatic Electric Co
PDF File 1267031.pdf 834 kB Shaun Ewing May 21, 1918 00:00
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US-1267031-A // Telephone trunk-circuits. // Bernard D. Willis // Automatic Electric Co
PDF File 1165709.pdf 833 kB Shaun Ewing Dec 28, 1915 00:00
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US-1165709-A // Automatic telephone system. // Winfred T. Powell // Automatic Electric Co
PDF File 1292499.pdf 831 kB Shaun Ewing Jan 28, 1919 00:00
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US-1292499-A // Automatic telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1157396.pdf 739 kB Shaun Ewing Oct 19, 1915 00:00
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US-1157396-A // Selective signaling system. // John A. Hulit // Automatic Electric Co
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