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 1714525.pdf | 877 kB | Shaun Ewing | May 28, 1929 00:00 |
|
US-1714525-A // Suppression of echoes and singing in four-wire circuits // Silent Harold C. // American Telephone & Telegraph | |||
| Version 1 (current) | 877 kB | Shaun Ewing | May 28, 1929 00:00 | US-1714525-A // Suppression of echoes and singing in four-wire circuits // Silent Harold C. // American Telephone & Telegraph | ||||
| PDF File 1713618.pdf | 211 kB | Shaun Ewing | May 21, 1929 00:00 |
|
US-1713618-A // Electric picture-transmitting apparatus // Overton Warner L. // American Telephone & Telegraph | |||
| Version 1 (current) | 211 kB | Shaun Ewing | May 21, 1929 00:00 | US-1713618-A // Electric picture-transmitting apparatus // Overton Warner L. // American Telephone & Telegraph | ||||
| PDF File 1713615.pdf | 342 kB | Shaun Ewing | May 21, 1929 00:00 |
|
US-1713615-A // Thermionic vacuum tube // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 342 kB | Shaun Ewing | May 21, 1929 00:00 | US-1713615-A // Thermionic vacuum tube // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1713603.pdf | 1.82 MB | Shaun Ewing | May 21, 1929 00:00 |
|
US-1713603-A // Electrical network // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.82 MB | Shaun Ewing | May 21, 1929 00:00 | US-1713603-A // Electrical network // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1713039.pdf | 858 kB | Shaun Ewing | May 14, 1929 00:00 |
|
US-1713039-A // Phonograph recording and reproducing // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 858 kB | Shaun Ewing | May 14, 1929 00:00 | US-1713039-A // Phonograph recording and reproducing // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1712542.pdf | 509 kB | Shaun Ewing | May 14, 1929 00:00 |
|
US-1712542-A // Toll trunk circuit // Bailey Rand S. // American Telephone & Telegraph | |||
| Version 1 (current) | 509 kB | Shaun Ewing | May 14, 1929 00:00 | US-1712542-A // Toll trunk circuit // Bailey Rand S. // American Telephone & Telegraph | ||||
| PDF File 1712541.pdf | 771 kB | Shaun Ewing | May 14, 1929 00:00 |
|
US-1712541-A // Wire-splicing machine // Wright John W. // American Telephone & Telegraph | |||
| Version 1 (current) | 771 kB | Shaun Ewing | May 14, 1929 00:00 | US-1712541-A // Wire-splicing machine // Wright John W. // American Telephone & Telegraph | ||||
| PDF File 1712528.pdf | 375 kB | Shaun Ewing | May 14, 1929 00:00 |
|
US-1712528-A // Printing-telegraph system // Swezey Burdette S. // American Telephone & Telegraph | |||
| Version 1 (current) | 375 kB | Shaun Ewing | May 14, 1929 00:00 | US-1712528-A // Printing-telegraph system // Swezey Burdette S. // American Telephone & Telegraph | ||||
| PDF File 1711562.pdf | 249 kB | Shaun Ewing | May 07, 1929 00:00 |
|
US-1711562-A // Echo-suppressor circuits // Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 249 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711562-A // Echo-suppressor circuits // Fetter Charles H. // American Telephone & Telegraph | ||||
| PDF File 1711560.pdf | 1.18 MB | Shaun Ewing | May 07, 1929 00:00 |
|
US-1711560-A // Radio broadcasting system // Espenschied Lloyd ; Bown Ralph ; Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | May 07, 1929 00:00 | US-1711560-A // Radio broadcasting system // Espenschied Lloyd ; Bown Ralph ; Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1711550.pdf | 412 kB | Shaun Ewing | May 07, 1929 00:00 |
|
US-1711550-A // Alternating-current relay // Sturdy William W. // American Telephone & Telegraph | |||
| Version 1 (current) | 412 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711550-A // Alternating-current relay // Sturdy William W. // American Telephone & Telegraph | ||||
| PDF File 1711101.pdf | 219 kB | Shaun Ewing | Apr 30, 1929 00:00 |
|
US-1711101-A // Means for indicating frequency changes // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Apr 30, 1929 00:00 | US-1711101-A // Means for indicating frequency changes // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1710787.pdf | 731 kB | Shaun Ewing | Apr 30, 1929 00:00 |
|
US-1710787-A // Method and means for producing insulating sleeves // Pike Vernon Bender ; John Everett St. // American Telephone & Telegraph | |||
| Version 1 (current) | 731 kB | Shaun Ewing | Apr 30, 1929 00:00 | US-1710787-A // Method and means for producing insulating sleeves // Pike Vernon Bender ; John Everett St. // American Telephone & Telegraph | ||||
| PDF File 1710786.pdf | 579 kB | Shaun Ewing | Apr 30, 1929 00:00 |
|
US-1710786-A // Method and means for producing insulating sleeves // Pike Vernon B. ; John Everett St. // American Telephone & Telegraph | |||
| Version 1 (current) | 579 kB | Shaun Ewing | Apr 30, 1929 00:00 | US-1710786-A // Method and means for producing insulating sleeves // Pike Vernon B. ; John Everett St. // American Telephone & Telegraph | ||||
| PDF File 1710756.pdf | 540 kB | Shaun Ewing | Apr 30, 1929 00:00 |
|
US-1710756-A // Reduction of attenuation due to the conductance losses in cross arms and insulator pins // Wilson Leon T. // American Telephone & Telegraph | |||
| Version 1 (current) | 540 kB | Shaun Ewing | Apr 30, 1929 00:00 | US-1710756-A // Reduction of attenuation due to the conductance losses in cross arms and insulator pins // Wilson Leon T. // American Telephone & Telegraph | ||||
| PDF File 1709926.pdf | 369 kB | Shaun Ewing | Apr 23, 1929 00:00 |
|
US-1709926-A // Apparatus and method for transmitting pictures // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 369 kB | Shaun Ewing | Apr 23, 1929 00:00 | US-1709926-A // Apparatus and method for transmitting pictures // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1709901.pdf | 930 kB | Shaun Ewing | Apr 23, 1929 00:00 |
|
US-1709901-A // Secret-signaling system // Espenschied Lloyd ; Gillett Glenn D. // American Telephone & Telegraph | |||
| Version 1 (current) | 930 kB | Shaun Ewing | Apr 23, 1929 00:00 | US-1709901-A // Secret-signaling system // Espenschied Lloyd ; Gillett Glenn D. // American Telephone & Telegraph | ||||
| PDF File 1709900.pdf | 645 kB | Shaun Ewing | Apr 23, 1929 00:00 |
|
US-1709900-A // Telephone system // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 645 kB | Shaun Ewing | Apr 23, 1929 00:00 | US-1709900-A // Telephone system // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1709037.pdf | 773 kB | Shaun Ewing | Apr 16, 1929 00:00 |
|
US-1709037-A // Distortion compensator // Pero Sallie E. // American Telephone & Telegraph | |||
| Version 1 (current) | 773 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1709037-A // Distortion compensator // Pero Sallie E. // American Telephone & Telegraph | ||||
| PDF File 1709009.pdf | 368 kB | Shaun Ewing | Apr 16, 1929 00:00 |
|
US-1709009-A // Multiple-channel radioreceiver // Espenschied Lloyd ; Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 368 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1709009-A // Multiple-channel radioreceiver // Espenschied Lloyd ; Martin De Loss K. // American Telephone & Telegraph |
