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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1233766.pdf | 748 kB | Shaun Ewing | Jul 17, 1917 00:00 |
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US-1233766-A // Duplex circuit. // Lloyd Espenschied // American Telephone & Telegraph | |||
| Version 1 (current) | 748 kB | Shaun Ewing | Jul 17, 1917 00:00 | US-1233766-A // Duplex circuit. // Lloyd Espenschied // American Telephone & Telegraph | ||||
| PDF File 1233767.pdf | 368 kB | Shaun Ewing | Jul 17, 1917 00:00 |
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US-1233767-A // Duplex circuit. // Lloyd Espenschied // American Telephone & Telegraph | |||
| Version 1 (current) | 368 kB | Shaun Ewing | Jul 17, 1917 00:00 | US-1233767-A // Duplex circuit. // Lloyd Espenschied // American Telephone & Telegraph | ||||
| PDF File 1233768.pdf | 590 kB | Shaun Ewing | Jul 17, 1917 00:00 |
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US-1233768-A // Inductance device. // Lloyd Espenschied // American Telephone & Telegraph | |||
| Version 1 (current) | 590 kB | Shaun Ewing | Jul 17, 1917 00:00 | US-1233768-A // Inductance device. // Lloyd Espenschied // American Telephone & Telegraph | ||||
| PDF File 1233769.pdf | 447 kB | Shaun Ewing | Jul 17, 1917 00:00 |
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US-1233769-A // Duplex circuit. // Lloyd Espenschied // American Telephone & Telegraph | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Jul 17, 1917 00:00 | US-1233769-A // Duplex circuit. // Lloyd Espenschied // American Telephone & Telegraph | ||||
| PDF File 1236575.pdf | 1013 kB | Shaun Ewing | Aug 14, 1917 00:00 |
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US-1236575-A // Telegraphy. // Isidor Kitsee // American Telephone & Telegraph | |||
| Version 1 (current) | 1013 kB | Shaun Ewing | Aug 14, 1917 00:00 | US-1236575-A // Telegraphy. // Isidor Kitsee // American Telephone & Telegraph | ||||
| PDF File 1236576.pdf | 264 kB | Shaun Ewing | Aug 14, 1917 00:00 |
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US-1236576-A // Telegraphic transmission. // Isidor Kitsee // American Telephone & Telegraph | |||
| Version 1 (current) | 264 kB | Shaun Ewing | Aug 14, 1917 00:00 | US-1236576-A // Telegraphic transmission. // Isidor Kitsee // American Telephone & Telegraph | ||||
| PDF File 1238008.pdf | 482 kB | Shaun Ewing | Aug 21, 1917 00:00 |
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US-1238008-A // Telegraph system. // John M. Fell // American Telephone & Telegraph | |||
| Version 1 (current) | 482 kB | Shaun Ewing | Aug 21, 1917 00:00 | US-1238008-A // Telegraph system. // John M. Fell // American Telephone & Telegraph | ||||
| PDF File 1238009.pdf | 478 kB | Shaun Ewing | Aug 21, 1917 00:00 |
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US-1238009-A // Telegraph-repeater. // John M. Fell // American Telephone & Telegraph | |||
| Version 1 (current) | 478 kB | Shaun Ewing | Aug 21, 1917 00:00 | US-1238009-A // Telegraph-repeater. // John M. Fell // 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 | ||||
| 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 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 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 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 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 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 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 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 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 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 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 |
