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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1254472.pdf | 1.63 MB | Shaun Ewing | Jan 22, 1918 00:00 |
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US-1254472-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 1.63 MB | Shaun Ewing | Jan 22, 1918 00:00 | US-1254472-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | ||||
| PDF File 1254471.pdf | 1.47 MB | Shaun Ewing | Jan 22, 1918 00:00 |
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US-1254471-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Jan 22, 1918 00:00 | US-1254471-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | ||||
| PDF File 1254146.pdf | 935 kB | Shaun Ewing | Jan 22, 1918 00:00 |
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US-1254146-A // Signaling-circuit. // William H. Martin // American Telephone & Telegraph | |||
| Version 1 (current) | 935 kB | Shaun Ewing | Jan 22, 1918 00:00 | US-1254146-A // Signaling-circuit. // William H. Martin // American Telephone & Telegraph | ||||
| PDF File 1254118.pdf | 1.16 MB | Shaun Ewing | Jan 22, 1918 00:00 |
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US-1254118-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Jan 22, 1918 00:00 | US-1254118-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | ||||
| PDF File 1254117.pdf | 1.90 MB | Shaun Ewing | Jan 22, 1918 00:00 |
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US-1254117-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 1.90 MB | Shaun Ewing | Jan 22, 1918 00:00 | US-1254117-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | ||||
| PDF File 1254116.pdf | 1.68 MB | Shaun Ewing | Jan 22, 1918 00:00 |
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US-1254116-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 1.68 MB | Shaun Ewing | Jan 22, 1918 00:00 | US-1254116-A // Signaling-circuit. // George A. Campbell // American Telephone & Telegraph | ||||
| PDF File 1251700.pdf | 199 kB | Shaun Ewing | Jan 01, 1918 00:00 |
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US-1251700-A // Shield for magnetic coils. // Thomas Shaw // American Telephone & Telegraph | |||
| Version 1 (current) | 199 kB | Shaun Ewing | Jan 01, 1918 00:00 | US-1251700-A // Shield for magnetic coils. // Thomas Shaw // American Telephone & Telegraph | ||||
| PDF File 1251651.pdf | 284 kB | Shaun Ewing | Jan 01, 1918 00:00 |
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US-1251651-A // Core for magnetic coils. // Lloyd Espenschied // American Telephone & Telegraph | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Jan 01, 1918 00:00 | US-1251651-A // Core for magnetic coils. // Lloyd Espenschied // American Telephone & Telegraph | ||||
| PDF File 1251364.pdf | 654 kB | Shaun Ewing | Dec 25, 1917 00:00 |
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US-1251364-A // Signaling system for multiplex telephone-circuits. // Bancroft Gherardi // American Telephone & Telegraph | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Dec 25, 1917 00:00 | US-1251364-A // Signaling system for multiplex telephone-circuits. // Bancroft Gherardi // American Telephone & Telegraph | ||||
| PDF File 1251363.pdf | 904 kB | Shaun Ewing | Dec 25, 1917 00:00 |
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US-1251363-A // Signaling system. // Bancroft Gherardi // American Telephone & Telegraph | |||
| Version 1 (current) | 904 kB | Shaun Ewing | Dec 25, 1917 00:00 | US-1251363-A // Signaling system. // Bancroft Gherardi // American Telephone & Telegraph | ||||
| PDF File 1247120.pdf | 443 kB | Shaun Ewing | Nov 20, 1917 00:00 |
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US-1247120-A // Telegraphy. // Isidor Kitsee // American Telephone & Telegraph | |||
| Version 1 (current) | 443 kB | Shaun Ewing | Nov 20, 1917 00:00 | US-1247120-A // Telegraphy. // Isidor Kitsee // American Telephone & Telegraph | ||||
| PDF File 1245894.pdf | 255 kB | Shaun Ewing | Nov 06, 1917 00:00 |
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US-1245894-A // Telegraphic receiving system. // John M. Fell // American Telephone & Telegraph | |||
| Version 1 (current) | 255 kB | Shaun Ewing | Nov 06, 1917 00:00 | US-1245894-A // Telegraphic receiving system. // John M. Fell // American Telephone & Telegraph | ||||
| PDF File 1245490.pdf | 1.44 MB | Shaun Ewing | Nov 06, 1917 00:00 |
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US-1245490-A // Telephone-service-observing system. // Edward C. Molina // American Telephone & Telegraph | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Nov 06, 1917 00:00 | US-1245490-A // Telephone-service-observing system. // Edward C. Molina // American Telephone & Telegraph | ||||
| PDF File 1245402.pdf | 1.22 MB | Shaun Ewing | Nov 06, 1917 00:00 |
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US-1245402-A // System for observing telephone service. // John F. Toomey // American Telephone & Telegraph | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Nov 06, 1917 00:00 | US-1245402-A // System for observing telephone service. // John F. Toomey // American Telephone & Telegraph | ||||
| PDF File 1245341.pdf | 869 kB | Shaun Ewing | Nov 06, 1917 00:00 |
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US-1245341-A // Service-observing system. // Henry L. Hoffmann // American Telephone & Telegraph | |||
| Version 1 (current) | 869 kB | Shaun Ewing | Nov 06, 1917 00:00 | US-1245341-A // Service-observing system. // Henry L. Hoffmann // American Telephone & Telegraph | ||||
| PDF File 1245321.pdf | 347 kB | Shaun Ewing | Nov 06, 1917 00:00 |
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US-1245321-A // Testing-circuit for measured-service apparatus. // John Davidson, Jr. // American Telephone & Telegraph | |||
| Version 1 (current) | 347 kB | Shaun Ewing | Nov 06, 1917 00:00 | US-1245321-A // Testing-circuit for measured-service apparatus. // John Davidson, Jr. // American Telephone & Telegraph | ||||
| PDF File 1244697.pdf | 744 kB | Shaun Ewing | Oct 30, 1917 00:00 |
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US-1244697-A // Wireless receiving system. // John R. Carson // American Telephone & Telegraph | |||
| Version 1 (current) | 744 kB | Shaun Ewing | Oct 30, 1917 00:00 | US-1244697-A // Wireless receiving system. // John R. Carson // American Telephone & Telegraph | ||||
| PDF File 1243705.pdf | 322 kB | Shaun Ewing | Oct 23, 1917 00:00 |
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US-1243705-A // Method of and means for transmitting signals. // John R. Carson // American Telephone & Telegraph | |||
| Version 1 (current) | 322 kB | Shaun Ewing | Oct 23, 1917 00:00 | US-1243705-A // Method of and means for transmitting signals. // John R. Carson // American Telephone & Telegraph | ||||
| PDF File 1243066.pdf | 697 kB | Shaun Ewing | Oct 16, 1917 00:00 |
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US-1243066-A // Network for neutralizing the characteristic reactance of a loaded line. // Ray S. Hoyt // American Telephone & Telegraph | |||
| Version 1 (current) | 697 kB | Shaun Ewing | Oct 16, 1917 00:00 | US-1243066-A // Network for neutralizing the characteristic reactance of a loaded line. // Ray S. Hoyt // American Telephone & Telegraph | ||||
| PDF File 1240213.pdf | 448 kB | Shaun Ewing | Sept 18, 1917 00:00 |
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US-1240213-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | |||
| Version 1 (current) | 448 kB | Shaun Ewing | Sept 18, 1917 00:00 | US-1240213-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph |
