Name Size Creator Creation Date Labels Comment  
PDF File 1282803.pdf 715 kB Shaun Ewing Oct 29, 1918 00:00
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US-1282803-A // Signaling system. // William A. Fricke // Automatic Electric Co
PDF File 1252979.pdf 709 kB Shaun Ewing Jan 08, 1918 00:00
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US-1252979-A // Testing system for party-lines. // Bernard D. Willis // Automatic Electric Co
PDF File 1192064.pdf 695 kB Shaun Ewing Jul 25, 1916 00:00
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US-1192064-A // Selective signaling system. // John A. Hulit // Automatic Electric Co
PDF File 1133796.pdf 681 kB Shaun Ewing Mar 30, 1915 00:00
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US-1133796-A // Telephone-exchange-system impulse-transmitter. // John Erickson // Automatic Electric Co
PDF File 819084.pdf 673 kB Shaun Ewing May 01, 1906 00:00
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US-819084-A // Telephone-transmitter. // Michael Setter // Automatic Electric Co
PDF File 1007344.pdf 654 kB Shaun Ewing Oct 31, 1911 00:00
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US-1007344-A // Telephone-system signaling apparatus. // John Erickson // Automatic Electric Co
PDF File 1254290.pdf 649 kB Shaun Ewing Jan 22, 1918 00:00
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US-1254290-A // Telephone meter-service system. // Harold D. Stroud // Automatic Electric Co
PDF File 819050.pdf 647 kB Shaun Ewing May 01, 1906 00:00
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US-819050-A // Indicating device for automatic telephone-switches. // John Erickson // Automatic Electric Co
PDF File 1209304.pdf 604 kB Shaun Ewing Dec 19, 1916 00:00
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US-1209304-A // Impulse-transmitting device. // Alexander E. Keith // Automatic Electric Co
PDF File 841004.pdf 534 kB Shaun Ewing Jan 08, 1907 00:00
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US-841004-A // Interrupter for electromagnets. // John Erickson // Automatic Electric Co
PDF File 831855.pdf 533 kB Shaun Ewing Sept 25, 1906 00:00
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US-831855-A // Telephone transmitter-arm. // Harry J. Guttman // Automatic Electric Co
PDF File 831847.pdf 529 kB Shaun Ewing Sept 25, 1906 00:00
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US-831847-A // Electrothermal switch. // John Erickson // Automatic Electric Co
PDF File 819083.pdf 524 kB Shaun Ewing May 01, 1906 00:00
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US-819083-A // Electric bell // Michael Setter // Automatic Electric Co
PDF File 801308.pdf 522 kB Shaun Ewing Oct 10, 1905 00:00
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US-801308-A // Lock for automatic telephone-switch shafts. // John Erickson // Automatic Electric Co
PDF File 819082.pdf 513 kB Shaun Ewing May 01, 1906 00:00
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US-819082-A // Electric relay. // Michael Setter // Automatic Electric Co
PDF File 1180462.pdf 504 kB Shaun Ewing Apr 25, 1916 00:00
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US-1180462-A // Telephone-receiver. // Bernard D. Willis // Automatic Electric Co
PDF File 819085.pdf 502 kB Shaun Ewing May 01, 1906 00:00
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US-819085-A // Strip of lamp-jacks. // Michael Setter // Automatic Electric Co
PDF File 1218067.pdf 499 kB Shaun Ewing Mar 06, 1917 00:00
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US-1218067-A // Pole-changer. // Charles J. Erickson // Automatic Electric Co
PDF File 1279352.pdf 496 kB Shaun Ewing Sept 17, 1918 00:00
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US-1279352-A // Impulse-transmitter. // Alexander E. Keith // Automatic Electric Co
PDF File 1112994.pdf 486 kB Shaun Ewing Oct 06, 1914 00:00
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US-1112994-A // Speed-indicator for calling devices. // John Erickson // Automatic Electric Co
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