Name Size Creator Creation Date Labels Comment  
PDF File 1055863.pdf 411 kB Shaun Ewing Mar 11, 1913 00:00
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US-1055863-A // Telephone signaling system. // William G. Blauvelt // American Telephone & Telegraph
PDF File 1039988.pdf 435 kB Shaun Ewing Oct 01, 1912 00:00
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US-1039988-A // Controlling apparatus. // Edward C. Molina // American Telephone & Telegraph
PDF File 1033963.pdf 204 kB Shaun Ewing Jul 30, 1912 00:00
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US-1033963-A // Ventilating system. // Edwin M. Surprise // American Telephone & Telegraph
PDF File 1033019.pdf 328 kB Shaun Ewing Jul 16, 1912 00:00
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US-1033019-A // Insulator. // Frank B. Jewett // American Telephone & Telegraph
PDF File 1032878.pdf 198 kB Shaun Ewing Jul 16, 1912 00:00
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US-1032878-A // Insulating-bushing. // Joseph E. Camatte // American Telephone & Telegraph
PDF File 1020541.pdf 336 kB Shaun Ewing Mar 19, 1912 00:00
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US-1020541-A // Instrument for testing batteries. // Charles J. Davidson // American Telephone & Telegraph
PDF File 1020244.pdf 282 kB Shaun Ewing Mar 12, 1912 00:00
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US-1020244-A // Tool for bending rings. // John W. Wright // American Telephone & Telegraph
PDF File 1002388.pdf 906 kB Shaun Ewing Sept 05, 1911 00:00
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US-1002388-A // Method of and means for connecting telephone apparatus. // Ernest A. Gray // American Telephone & Telegraph
PDF File 990219.pdf 463 kB Shaun Ewing Apr 25, 1911 00:00
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US-990219-A // Supervisory signaling system. // William G. Blauvelt // American Telephone & Telegraph
PDF File 981015.pdf 438 kB Shaun Ewing Jan 10, 1911 00:00
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US-981015-A // Phantomed loaded circuit. // Thomas Shaw // American Telephone & Telegraph
PDF File 980921.pdf 545 kB Shaun Ewing Jan 10, 1911 00:00
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US-980921-A // Loaded phantom-circuit. // George A. Campbell ; Thomas Shaw // American Telephone & Telegraph
PDF File 942807.pdf 480 kB Shaun Ewing Dec 07, 1909 00:00
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US-942807-A // Telegraphic repeating apparatus. // William E. Athearn // American Telephone & Telegraph
PDF File 940673.pdf 685 kB Shaun Ewing Nov 23, 1909 00:00
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US-940673-A // Telephone-key and means for actuating the same. // William Christensen // American Telephone & Telegraph
PDF File 940658.pdf 583 kB Shaun Ewing Nov 23, 1909 00:00
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US-940658-A // System for nullifying inductive disturbances. // John A. Barrett // American Telephone & Telegraph
PDF File 940655.pdf 767 kB Shaun Ewing Nov 23, 1909 00:00
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US-940655-A // Electrical conducting system. // William E. Athearn // American Telephone & Telegraph
PDF File 940654.pdf 601 kB Shaun Ewing Nov 23, 1909 00:00
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US-940654-A // Art of nullifying inductive disturbances. // William E. Athearn // American Telephone & Telegraph
PDF File 938039.pdf 824 kB Shaun Ewing Oct 26, 1909 00:00
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US-938039-A // Apparatus and system for measuring telephone service. // Sidney Hand Browne // American Telephone & Telegraph
PDF File 938026.pdf 530 kB Shaun Ewing Oct 26, 1909 00:00
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US-938026-A // Locking and signaling system for telephone-registers. // Alexander S. Spiegel // American Telephone & Telegraph
PDF File 937189.pdf 395 kB Shaun Ewing Oct 19, 1909 00:00
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US-937189-A // Telephone repeating system. // Herbert E. Shreeve // American Telephone & Telegraph
PDF File 931231.pdf 257 kB Shaun Ewing Aug 17, 1909 00:00
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US-931231-A // Mounting for telephone instruments. // Herbert E. Shreeve // American Telephone & Telegraph
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