Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 705686.pdf | 475 kB | Shaun Ewing | Jul 29, 1902 00:00 |
|
US-705686-A // Telephony. // Joseph Lyons // American Telephone & Telegraph | |||
| Version 1 (current) | 475 kB | Shaun Ewing | Jul 29, 1902 00:00 | US-705686-A // Telephony. // Joseph Lyons // American Telephone & Telegraph | ||||
| PDF File 1256889.pdf | 474 kB | Shaun Ewing | Feb 19, 1918 00:00 |
|
US-1256889-A // Wireless duplex signaling system. // Lloyd Espenschied // American Telephone & Telegraph | |||
| Version 1 (current) | 474 kB | Shaun Ewing | Feb 19, 1918 00:00 | US-1256889-A // Wireless duplex signaling system. // Lloyd Espenschied // American Telephone & Telegraph | ||||
| PDF File 893319.pdf | 473 kB | Shaun Ewing | Jul 14, 1908 00:00 |
|
US-893319-A // Cable raising or separating device. // Andrew G. Gillespie ; William E. Potter // American Telephone & Telegraph | |||
| Version 1 (current) | 473 kB | Shaun Ewing | Jul 14, 1908 00:00 | US-893319-A // Cable raising or separating device. // Andrew G. Gillespie ; William E. Potter // American Telephone & Telegraph | ||||
| PDF File 476618.pdf | 471 kB | Shaun Ewing | Jun 07, 1892 00:00 |
|
US-476618-A // Apparatus and system for compound telegraphy and telephony // Francis W. Dtjnbar, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Jun 07, 1892 00:00 | US-476618-A // Apparatus and system for compound telegraphy and telephony // Francis W. Dtjnbar, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 1089479.pdf | 469 kB | Shaun Ewing | Mar 10, 1914 00:00 |
|
US-1089479-A // Cable-telegraph system. // Isidor Kitsee // American Telephone & Telegraph | |||
| Version 1 (current) | 469 kB | Shaun Ewing | Mar 10, 1914 00:00 | US-1089479-A // Cable-telegraph system. // Isidor Kitsee // American Telephone & Telegraph | ||||
| PDF File 1215331.pdf | 466 kB | Shaun Ewing | Feb 13, 1917 00:00 |
|
US-1215331-A // Telephone toll system. // Henry M. Bascom // American Telephone & Telegraph | |||
| Version 1 (current) | 466 kB | Shaun Ewing | Feb 13, 1917 00:00 | US-1215331-A // Telephone toll system. // Henry M. Bascom // American Telephone & Telegraph | ||||
| PDF File 990219.pdf | 463 kB | Shaun Ewing | Apr 25, 1911 00:00 |
|
US-990219-A // Supervisory signaling system. // William G. Blauvelt // American Telephone & Telegraph | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Apr 25, 1911 00:00 | US-990219-A // Supervisory signaling system. // William G. Blauvelt // American Telephone & Telegraph | ||||
| PDF File 397331.pdf | 462 kB | Shaun Ewing | Feb 05, 1889 00:00 |
|
US-397331-A // Telephone circuit and apparatus // John A. Barrett, Of New York // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 462 kB | Shaun Ewing | Feb 05, 1889 00:00 | US-397331-A // Telephone circuit and apparatus // John A. Barrett, Of New York // American Telephone & Telegraph, New York NY | ||||
| PDF File 912908.pdf | 457 kB | Shaun Ewing | Feb 16, 1909 00:00 |
|
US-912908-A // Telephone repeating apparatus and circuit. // John J. Skidmore // American Telephone & Telegraph | |||
| Version 1 (current) | 457 kB | Shaun Ewing | Feb 16, 1909 00:00 | US-912908-A // Telephone repeating apparatus and circuit. // John J. Skidmore // American Telephone & Telegraph | ||||
| PDF File 1273154.pdf | 454 kB | Shaun Ewing | Jul 23, 1918 00:00 |
|
US-1273154-A // Relay selecting-circuit for artificial lines. // Charles S. Demarest // American Telephone & Telegraph | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Jul 23, 1918 00:00 | US-1273154-A // Relay selecting-circuit for artificial lines. // Charles S. Demarest // American Telephone & Telegraph | ||||
| PDF File 1265851.pdf | 451 kB | Shaun Ewing | May 14, 1918 00:00 |
|
US-1265851-A // Mechanism for installing transmission line-wires. // Harry C. Williams // American Telephone & Telegraph | |||
| Version 1 (current) | 451 kB | Shaun Ewing | May 14, 1918 00:00 | US-1265851-A // Mechanism for installing transmission line-wires. // Harry C. Williams // American Telephone & Telegraph | ||||
| PDF File 1353735.pdf | 450 kB | Shaun Ewing | Sept 21, 1920 00:00 |
|
US-1353735-A // Antenna structure // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 450 kB | Shaun Ewing | Sept 21, 1920 00:00 | US-1353735-A // Antenna structure // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1318088.pdf | 449 kB | Shaun Ewing | Oct 07, 1919 00:00 |
|
US-1318088-A // Combination-tool. // Charles H. Klein // American Telephone & Telegraph | |||
| Version 1 (current) | 449 kB | Shaun Ewing | Oct 07, 1919 00:00 | US-1318088-A // Combination-tool. // Charles H. Klein // American Telephone & Telegraph | ||||
| PDF File 1352786.pdf | 449 kB | Shaun Ewing | Sept 14, 1920 00:00 |
|
US-1352786-A // Four-wire transmission system // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 449 kB | Shaun Ewing | Sept 14, 1920 00:00 | US-1352786-A // Four-wire transmission system // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1240213.pdf | 448 kB | Shaun Ewing | Sept 18, 1917 00:00 |
|
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 1233769.pdf | 447 kB | Shaun Ewing | Jul 17, 1917 00:00 |
|
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 553605.pdf | 445 kB | Shaun Ewing | Jan 28, 1896 00:00 |
|
US-553605-A // Composite telegraphic and telephonic transmission // Edward E. Backus, Of N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 445 kB | Shaun Ewing | Jan 28, 1896 00:00 | US-553605-A // Composite telegraphic and telephonic transmission // Edward E. Backus, Of N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 558310.pdf | 444 kB | Shaun Ewing | Apr 14, 1896 00:00 |
|
US-558310-A // Apparatus for composite transmission of intelligence // Frank A. Pickernell, of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 444 kB | Shaun Ewing | Apr 14, 1896 00:00 | US-558310-A // Apparatus for composite transmission of intelligence // Frank A. Pickernell, of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 481120.pdf | 443 kB | Shaun Ewing | Aug 16, 1892 00:00 |
|
US-481120-A // Electric annunciator // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 443 kB | Shaun Ewing | Aug 16, 1892 00:00 | US-481120-A // Electric annunciator // Frank A. Pickernell, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 1247120.pdf | 443 kB | Shaun Ewing | Nov 20, 1917 00:00 |
|
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 |
