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 1175112.pdf | 843 kB | Shaun Ewing | Mar 14, 1916 00:00 |
|
US-1175112-A // Telephone system. // Henry M. Bascom // American Telephone & Telegraph | |||
| Version 1 (current) | 843 kB | Shaun Ewing | Mar 14, 1916 00:00 | US-1175112-A // Telephone system. // Henry M. Bascom // American Telephone & Telegraph | ||||
| PDF File 501086.pdf | 840 kB | Shaun Ewing | Jul 11, 1893 00:00 |
|
US-501086-A // Station Apparatus for Telephone-circuits. // Sherwood J. Larned, Of Illinois And Frank A. Picker-Nell Of Newark New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 840 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501086-A // Station Apparatus for Telephone-circuits. // Sherwood J. Larned, Of Illinois And Frank A. Picker-Nell Of Newark New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 1167693.pdf | 840 kB | Shaun Ewing | Jan 11, 1916 00:00 |
|
US-1167693-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | |||
| Version 1 (current) | 840 kB | Shaun Ewing | Jan 11, 1916 00:00 | US-1167693-A // Artificial line. // Ray S. Hoyt // American Telephone & Telegraph | ||||
| PDF File 1355147.pdf | 840 kB | Shaun Ewing | Oct 12, 1920 00:00 |
|
US-1355147-A // Network-selecting device // Jacobs Oliver B. // American Telephone & Telegraph | |||
| Version 1 (current) | 840 kB | Shaun Ewing | Oct 12, 1920 00:00 | US-1355147-A // Network-selecting device // Jacobs Oliver B. // American Telephone & Telegraph | ||||
| PDF File 1359516.pdf | 835 kB | Shaun Ewing | Nov 23, 1920 00:00 |
|
US-1359516-A // Holding-circuits for toll-switching trunks // Loynes Owen H. // American Telephone & Telegraph | |||
| Version 1 (current) | 835 kB | Shaun Ewing | Nov 23, 1920 00:00 | US-1359516-A // Holding-circuits for toll-switching trunks // Loynes Owen H. // American Telephone & Telegraph | ||||
| PDF File 560861.pdf | 833 kB | Shaun Ewing | May 26, 1896 00:00 |
|
US-560861-A // Multiple Telephony. // Frank A. Pickernell, of New Jersey And Frederic S. Perrin Of New York N. Y. // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 833 kB | Shaun Ewing | May 26, 1896 00:00 | US-560861-A // Multiple Telephony. // Frank A. Pickernell, of New Jersey And Frederic S. Perrin Of New York N. Y. // American Telephone & Telegraph, New York NY | ||||
| PDF File 501087.pdf | 832 kB | Shaun Ewing | Jul 11, 1893 00:00 |
|
US-501087-A // Electric Signaling. // Lockwood, Thomas D. And Sherwood J. Larned Of Evanston Illinois // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 832 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501087-A // Electric Signaling. // Lockwood, Thomas D. And Sherwood J. Larned Of Evanston Illinois // American Telephone & Telegraph, New York NY | ||||
| PDF File 729709.pdf | 831 kB | Shaun Ewing | Jun 02, 1903 00:00 |
|
US-729709-A // Loaded electric circuit. // Howard S. Warren ; George A. Campbell // American Telephone & Telegraph | |||
| Version 1 (current) | 831 kB | Shaun Ewing | Jun 02, 1903 00:00 | US-729709-A // Loaded electric circuit. // Howard S. Warren ; George A. Campbell // American Telephone & Telegraph | ||||
| PDF File 938039.pdf | 824 kB | Shaun Ewing | Oct 26, 1909 00:00 |
|
US-938039-A // Apparatus and system for measuring telephone service. // Sidney Hand Browne // American Telephone & Telegraph | |||
| Version 1 (current) | 824 kB | Shaun Ewing | Oct 26, 1909 00:00 | US-938039-A // Apparatus and system for measuring telephone service. // Sidney Hand Browne // American Telephone & Telegraph | ||||
| PDF File 920259.pdf | 818 kB | Shaun Ewing | May 04, 1909 00:00 |
|
US-920259-A // Call-distributing telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | |||
| Version 1 (current) | 818 kB | Shaun Ewing | May 04, 1909 00:00 | US-920259-A // Call-distributing telephone-exchange system. // Sidney Hand Browne // American Telephone & Telegraph | ||||
| PDF File 1061519.pdf | 815 kB | Shaun Ewing | May 13, 1913 00:00 |
|
US-1061519-A // Controlling apparatus. // William G. Blauvelt ; Edward C. Molina // American Telephone & Telegraph | |||
| Version 1 (current) | 815 kB | Shaun Ewing | May 13, 1913 00:00 | US-1061519-A // Controlling apparatus. // William G. Blauvelt ; Edward C. Molina // American Telephone & Telegraph | ||||
| PDF File 681603.pdf | 812 kB | Shaun Ewing | Aug 27, 1901 00:00 |
|
US-681603-A // Mechanical intercommunication between telephone-switchboards. // George M. Yorke // American Telephone & Telegraph | |||
| Version 1 (current) | 812 kB | Shaun Ewing | Aug 27, 1901 00:00 | US-681603-A // Mechanical intercommunication between telephone-switchboards. // George M. Yorke // American Telephone & Telegraph | ||||
| PDF File 1295816.pdf | 807 kB | Shaun Ewing | Feb 25, 1919 00:00 |
|
US-1295816-A // Testing apparatus for four-wire repeater-circuits. // John F. Toomey // American Telephone & Telegraph | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Feb 25, 1919 00:00 | US-1295816-A // Testing apparatus for four-wire repeater-circuits. // John F. Toomey // American Telephone & Telegraph | ||||
| PDF File 782892.pdf | 798 kB | Shaun Ewing | Feb 21, 1905 00:00 |
|
US-782892-A // Telegraphic repeating apparatus. // William E. Athearn // American Telephone & Telegraph | |||
| Version 1 (current) | 798 kB | Shaun Ewing | Feb 21, 1905 00:00 | US-782892-A // Telegraphic repeating apparatus. // William E. Athearn // American Telephone & Telegraph | ||||
| PDF File 501102.pdf | 794 kB | Shaun Ewing | Jul 11, 1893 00:00 |
|
US-501102-A // Telephone signaling apparatus and circuit // Frank A. Pickebnell, Of New Jersey // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 794 kB | Shaun Ewing | Jul 11, 1893 00:00 | US-501102-A // Telephone signaling apparatus and circuit // Frank A. Pickebnell, Of New Jersey // American Telephone & Telegraph, New York NY | ||||
| PDF File 1361929.pdf | 768 kB | Shaun Ewing | Dec 14, 1920 00:00 |
|
US-1361929-A // Monitoring-circuit for telephone-repeaters // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 768 kB | Shaun Ewing | Dec 14, 1920 00:00 | US-1361929-A // Monitoring-circuit for telephone-repeaters // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 786148.pdf | 768 kB | Shaun Ewing | Mar 28, 1905 00:00 |
|
US-786148-A // Signal system for electric railways. // Greenleaf Whittier Pickard ; Harold J. W. Fay // American Telephone & Telegraph | |||
| Version 1 (current) | 768 kB | Shaun Ewing | Mar 28, 1905 00:00 | US-786148-A // Signal system for electric railways. // Greenleaf Whittier Pickard ; Harold J. W. Fay // American Telephone & Telegraph | ||||
| PDF File 940655.pdf | 767 kB | Shaun Ewing | Nov 23, 1909 00:00 |
|
US-940655-A // Electrical conducting system. // William E. Athearn // American Telephone & Telegraph | |||
| Version 1 (current) | 767 kB | Shaun Ewing | Nov 23, 1909 00:00 | US-940655-A // Electrical conducting system. // William E. Athearn // American Telephone & Telegraph | ||||
| PDF File 761916.pdf | 763 kB | Shaun Ewing | Jun 07, 1904 00:00 |
|
US-761916-A // Protective device for telephone-circuits. // Malcolm C. Rorty ; George K. Thompson // American Telephone & Telegraph | |||
| Version 1 (current) | 763 kB | Shaun Ewing | Jun 07, 1904 00:00 | US-761916-A // Protective device for telephone-circuits. // Malcolm C. Rorty ; George K. Thompson // American Telephone & Telegraph | ||||
| PDF File 1309538.pdf | 754 kB | Shaun Ewing | Jul 08, 1919 00:00 |
|
US-1309538-A // Wireless system // John Mills, Of Wyoming, New Jersey, And John R. Carson, Of New York, N. Y.,<br> // American Telephone & Telegraph, New York NY | |||
| Version 1 (current) | 754 kB | Shaun Ewing | Jul 08, 1919 00:00 | US-1309538-A // Wireless system // John Mills, Of Wyoming, New Jersey, And John R. Carson, Of New York, N. Y.,<br> // American Telephone & Telegraph, New York NY |
