Name Size Creator Creation Date Labels Comment  
PDF File 1196876.pdf 3.67 MB Shaun Ewing Sept 05, 1916 00:00
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US-1196876-A // Automatic telephone and supervisory system. // Fritz Lubberger // Automatic Electric Co
PDF File 1275141.pdf 3.61 MB Shaun Ewing Aug 06, 1918 00:00
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US-1275141-A // Telephone-exchange apparatus and system. // John Erickson // Automatic Electric Co
PDF File 1318004.pdf 3.57 MB Shaun Ewing Oct 07, 1919 00:00
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US-1318004-A // Automatic telephone system. // Bernard D. Willis // Automatic Electric Co
PDF File 1287079.pdf 3.51 MB Shaun Ewing Dec 10, 1918 00:00
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US-1287079-A // Automatic telephone system. // Frank Newforth // Automatic Electric Co
PDF File 1278365.pdf 3.41 MB Shaun Ewing Sept 10, 1918 00:00
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US-1278365-A // Automatic telephone system. // Anders M. Malmberg // Automatic Electric Co
PDF File 815321.pdf 3.37 MB Shaun Ewing Mar 13, 1906 00:00
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US-815321-A // Automatic telephone selector-switch. // Alexander E. Keith ; John Erickson ; Charles J. Erickson // Automatic Electric Co
PDF File 1265225.pdf 3.34 MB Shaun Ewing May 07, 1918 00:00
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US-1265225-A // Semi-automatic telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1238039.pdf 3.34 MB Shaun Ewing Aug 21, 1917 00:00
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US-1238039-A // Telephone-exchange automatic trunking system. // Talbot G. Martin // Automatic Electric Co
PDF File 1236858.pdf 3.30 MB Shaun Ewing Aug 14, 1917 00:00
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US-1236858-A // Telephone-exchange system. // Talbot G. Martin // Automatic Electric Co
PDF File 1260424.pdf 3.29 MB Shaun Ewing Mar 26, 1918 00:00
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US-1260424-A // Common-battery two-wire repeater system. // Talbot G. Martin // Automatic Electric Co
PDF File 1301584.pdf 3.27 MB Shaun Ewing Apr 22, 1919 00:00
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US-1301584-A // Combined automatic and manual telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1271032.pdf 3.25 MB Shaun Ewing Jul 02, 1918 00:00
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US-1271032-A // Automatic telephone system. // Bernard C. Groh // Automatic Electric Co
PDF File 1237208.pdf 3.24 MB Shaun Ewing Aug 14, 1917 00:00
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US-1237208-A // Automatic telephone system. // Alexander E. Keith // Automatic Electric Co
PDF File 1221287.pdf 3.24 MB Shaun Ewing Apr 03, 1917 00:00
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US-1221287-A // Automatic telephone trunking-switch and system therefor. // Wilson L. Campbell // Automatic Electric Co
PDF File 1101854.pdf 3.23 MB Shaun Ewing Jun 30, 1914 00:00
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US-1101854-A // Automatic trunking system. // Alexander E. Keith // Automatic Electric Co
PDF File 1199748.pdf 3.20 MB Shaun Ewing Sept 26, 1916 00:00
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US-1199748-A // Automatic and manual telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1253703.pdf 3.18 MB Shaun Ewing Jan 15, 1918 00:00
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US-1253703-A // Semi-automatic telephone trunking system. // Talbot G. Martin // Automatic Electric Co
PDF File 1134978.pdf 3.07 MB Shaun Ewing Apr 06, 1915 00:00
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US-1134978-A // Semi-automatic telephone-exchange trunking system. // Edward A. Mellinger // Automatic Electric Co
PDF File 1267131.pdf 3.07 MB Shaun Ewing May 21, 1918 00:00
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US-1267131-A // Automatic or semi-automatic telephone system. // Arthur Bessey Smith // Automatic Electric Co
PDF File 1262843.pdf 3.01 MB Shaun Ewing Apr 16, 1918 00:00
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US-1262843-A // Automatic telephone system. // Arthur J. Ray // Automatic Electric Co
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