Name Size Creator Creation Date Labels Comment  
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 1221801.pdf 1.88 MB Shaun Ewing Oct 26, 1920 00:00
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US-1221801-A // Selective signaling system. // John A. Hulit // 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 1315442.pdf 2.13 MB Shaun Ewing Sept 09, 1919 00:00
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US-1315442-A // Automatic telephone system. // Bernard D. Willis // Automatic Electric Co
PDF File 1301648.pdf 2.53 MB Shaun Ewing Apr 22, 1919 00:00
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US-1301648-A // Automatic and manual telephone-exchange system. // Wilson L. Campbell ; Talbot G. Martin // Automatic Electric Co
PDF File 1301647.pdf 3.85 MB Shaun Ewing Apr 22, 1919 00:00
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US-1301647-A // Telephone system. // Wilson L. Campbell ; 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 1299155.pdf 293 kB Shaun Ewing Apr 01, 1919 00:00
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US-1299155-A // Circuit for pole-changers. // Charles J. Erickson // Automatic Electric Co
PDF File 1297251.pdf 5.62 MB Shaun Ewing Mar 11, 1919 00:00
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US-1297251-A // Telephone system. // Homer J. Roberts // Automatic Electric Co
PDF File 1295229.pdf 2.76 MB Shaun Ewing Feb 25, 1919 00:00
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US-1295229-A // Telephone-exchange system. // Arthur B. Sperry // Automatic Electric Co
PDF File 1295185.pdf 1.29 MB Shaun Ewing Feb 25, 1919 00:00
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US-1295185-A // Rotary connector. // Trygve E. Meyer // Automatic Electric Co
PDF File 1295181.pdf 3.90 MB Shaun Ewing Feb 25, 1919 00:00
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US-1295181-A // Telephone-exchange system. // Fritz Lubberger // 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 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 1293620.pdf 2.31 MB Shaun Ewing Feb 04, 1919 00:00
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US-1293620-A // Automatic telephone system. // Winfred T. Powell // Automatic Electric Co
PDF File 1293597.pdf 1.64 MB Shaun Ewing Feb 04, 1919 00:00
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US-1293597-A // Telephone system. // Bernard D. Willis // Automatic Electric Co
PDF File 1293499.pdf 1.89 MB Shaun Ewing Feb 04, 1919 00:00
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US-1293499-A // Automatic telephone system. // Talbot G. Martin // Automatic Electric Co
PDF File 1293415.pdf 1.68 MB Shaun Ewing Feb 04, 1919 00:00
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US-1293415-A // Telephone trunking system. // Bernard C. Groh // Automatic Electric Co
PDF File 1293387.pdf 356 kB Shaun Ewing Feb 04, 1919 00:00
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US-1293387-A // Electromagnetic signaling device. // Charles J. Erickson // Automatic Electric Co
PDF File 1292827.pdf 2.24 MB Shaun Ewing Jan 28, 1919 00:00
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US-1292827-A // Telephone-exchange trunking system. // Fritz Lubberger // Automatic Electric Co
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