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 2212216.pdf | 666 kB | Shaun Ewing | Aug 20, 1940 00:00 |
|
US-2212216-A // Telephone set // Tradup Albert // Bell Telephone Labor Inc | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Aug 20, 1940 00:00 | US-2212216-A // Telephone set // Tradup Albert // Bell Telephone Labor Inc | ||||
| PDF File 2212337.pdf | 412 kB | Shaun Ewing | Aug 20, 1940 00:00 |
|
US-2212337-A // Electron discharge device circuit // Brewer Sherman T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 412 kB | Shaun Ewing | Aug 20, 1940 00:00 | US-2212337-A // Electron discharge device circuit // Brewer Sherman T. // Bell Telephone Labor Inc | ||||
| PDF File 2212338.pdf | 638 kB | Shaun Ewing | Aug 20, 1940 00:00 |
|
US-2212338-A // Frequency modulation // Bown Ralph // Bell Telephone Labor Inc | |||
| Version 1 (current) | 638 kB | Shaun Ewing | Aug 20, 1940 00:00 | US-2212338-A // Frequency modulation // Bown Ralph // Bell Telephone Labor Inc | ||||
| PDF File 2212830.pdf | 785 kB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2212830-A // Relay // Hickman Clarence N. ; Heights Jackson ; Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 785 kB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212830-A // Relay // Hickman Clarence N. ; Heights Jackson ; Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2212836.pdf | 499 kB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2212836-A // Condenser dielectric // Kohman Girard T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 499 kB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212836-A // Condenser dielectric // Kohman Girard T. // Bell Telephone Labor Inc | ||||
| PDF File 2212840.pdf | 639 kB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2212840-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212840-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2212929.pdf | 1.34 MB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2212929-A // High power discharge device // Clark James E. ; Ekstrand Sture O. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.34 MB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212929-A // High power discharge device // Clark James E. ; Ekstrand Sture O. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2212960.pdf | 1.02 MB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2212960-A // Signal controlled switching circuits in telephone systems // Schott Lionel // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212960-A // Signal controlled switching circuits in telephone systems // Schott Lionel // Bell Telephone Labor Inc | ||||
| PDF File 2213034.pdf | 756 kB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2213034-A // Gain control circuits // Barney Harold L. ; Bjornson Bjorn G. ; Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 756 kB | Shaun Ewing | Aug 27, 1940 00:00 | US-2213034-A // Gain control circuits // Barney Harold L. ; Bjornson Bjorn G. ; Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 2213037.pdf | 1.03 MB | Shaun Ewing | Aug 27, 1940 00:00 |
|
US-2213037-A // Signal transmission system // Bollman John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | Aug 27, 1940 00:00 | US-2213037-A // Signal transmission system // Bollman John H. // Bell Telephone Labor Inc | ||||
| PDF File 2213320.pdf | 429 kB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213320-A // Privacy system // Mathes Robert C. ; Peterson Eugene ; Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 429 kB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213320-A // Privacy system // Mathes Robert C. ; Peterson Eugene ; Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2213397.pdf | 289 kB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213397-A // Alloys // Kingsbury Edwin F. ; Reeve Howard T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 289 kB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213397-A // Alloys // Kingsbury Edwin F. ; Reeve Howard T. // Bell Telephone Labor Inc | ||||
| PDF File 2213398.pdf | 558 kB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213398-A // Vacuum tube circuit // Kircher Reymond J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213398-A // Vacuum tube circuit // Kircher Reymond J. // Bell Telephone Labor Inc | ||||
| PDF File 2213511.pdf | 6.11 MB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213511-A // Telephone system // Bennett William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 6.11 MB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213511-A // Telephone system // Bennett William // Bell Telephone Labor Inc | ||||
| PDF File 2213564.pdf | 968 kB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213564-A // Mitigation of intercircuit interference // Krist Henry K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 968 kB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213564-A // Mitigation of intercircuit interference // Krist Henry K. // Bell Telephone Labor Inc | ||||
| PDF File 2213938.pdf | 531 kB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213938-A // Multiplex signaling with phase discrimination // Bennett William R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 531 kB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213938-A // Multiplex signaling with phase discrimination // Bennett William R. // Bell Telephone Labor Inc | ||||
| PDF File 2213941.pdf | 645 kB | Shaun Ewing | Sept 03, 1940 00:00 |
|
US-2213941-A // Multiplex signaling by phase discrimination // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 645 kB | Shaun Ewing | Sept 03, 1940 00:00 | US-2213941-A // Multiplex signaling by phase discrimination // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2213991.pdf | 1.96 MB | Shaun Ewing | Sept 10, 1940 00:00 |
|
US-2213991-A // Control of transmission in two-way telephone systems // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.96 MB | Shaun Ewing | Sept 10, 1940 00:00 | US-2213991-A // Control of transmission in two-way telephone systems // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 2214019.pdf | 724 kB | Shaun Ewing | Sept 10, 1940 00:00 |
|
US-2214019-A // Electronic switching device // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 724 kB | Shaun Ewing | Sept 10, 1940 00:00 | US-2214019-A // Electronic switching device // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2214130.pdf | 1.10 MB | Shaun Ewing | Sept 10, 1940 00:00 |
|
US-2214130-A // Measurement of phase change and envelope delay of a transmission line // Green Estill I. ; Monk Newton // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Sept 10, 1940 00:00 | US-2214130-A // Measurement of phase change and envelope delay of a transmission line // Green Estill I. ; Monk Newton // Bell Telephone Labor Inc |
