Name Size Creator Creation Date Labels Comment  
PDF File 1206906.pdf 327 kB Shaun Ewing Dec 05, 1916 00:00
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US-1206906-A // Folding scaling-ladder. // Frans Persson // American Telephone & Telegraph
PDF File 1205618.pdf 951 kB Shaun Ewing Nov 21, 1916 00:00
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US-1205618-A // Speech-transmitting mechanism. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1203326.pdf 1.64 MB Shaun Ewing Oct 31, 1916 00:00
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US-1203326-A // Telephone relay or repeater. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1203325.pdf 1.42 MB Shaun Ewing Oct 31, 1916 00:00
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US-1203325-A // Telephone relay or repeater. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1200822.pdf 261 kB Shaun Ewing Oct 10, 1916 00:00
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US-1200822-A // Governing device for escapement mechanism. // John Erickson // American Telephone Fire Alarm Company
PDF File 1198345.pdf 502 kB Shaun Ewing Sept 12, 1916 00:00
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US-1198345-A // Telephone-transmitter. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1198214.pdf 628 kB Shaun Ewing Sept 12, 1916 00:00
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US-1198214-A // Telephone system. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1198213.pdf 1.05 MB Shaun Ewing Sept 12, 1916 00:00
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US-1198213-A // Telephone-repeater. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1198212.pdf 1.82 MB Shaun Ewing Sept 12, 1916 00:00
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US-1198212-A // Telephone-repeater. // Elwood Grissinger // American Telephone & Telegraph
PDF File 1188531.pdf 298 kB Shaun Ewing Jun 27, 1916 00:00
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US-1188531-A // Duplex wireless system. // John R. Carson // American Telephone & Telegraph
PDF File 1186577.pdf 384 kB Shaun Ewing Jun 13, 1916 00:00
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US-1186577-A // Attachment for coin-collecting apparatus. // Alfred U. Hoefer ; Leon D. Barrows // American Telephone & Telegraph
PDF File 1175112.pdf 843 kB Shaun Ewing Mar 14, 1916 00:00
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US-1175112-A // Telephone system. // Henry M. Bascom // American Telephone & Telegraph
PDF File 1175111.pdf 204 kB Shaun Ewing Mar 14, 1916 00:00
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US-1175111-A // Means for preventing inductive disturbance in the test-circuits of telephone-switchboards. // Henry M. Bascom // American Telephone & Telegraph
PDF File 1174187.pdf 325 kB Shaun Ewing Mar 07, 1916 00:00
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US-1174187-A // Loading-coil. // Thomas Shaw // American Telephone & Telegraph
PDF File 1173655.pdf 661 kB Shaun Ewing Feb 29, 1916 00:00
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US-1173655-A // Phantom circuit. // Frank H. Fay ; Thomas Shaw ; James J. Pilliod // American Telephone & Telegraph
PDF File 1172760.pdf 731 kB Shaun Ewing Feb 22, 1916 00:00
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US-1172760-A // System of call distribution. // Henry M. Bascom // American Telephone & Telegraph
PDF File 1167694.pdf 162 kB Shaun Ewing Jan 11, 1916 00:00
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US-1167694-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph
PDF File 1167693.pdf 840 kB Shaun Ewing Jan 11, 1916 00:00
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US-1167693-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph
PDF File 1167677.pdf 688 kB Shaun Ewing Jan 11, 1916 00:00
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US-1167677-A // System for measuring capacities. // George A. Campbell ; Otto B. Blackwell ; Edwin H. Colpitts // American Telephone & Telegraph
PDF File 1144560.pdf 897 kB Shaun Ewing Jun 29, 1915 00:00
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US-1144560-A // Indicating system. // Edward C. Molina // American Telephone & Telegraph
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