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 2068316.pdf | 456 kB | Shaun Ewing | Jan 19, 1937 00:00 |
|
US-2068316-A // Alternating current regulator // Farkas Samuel Francis // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Jan 19, 1937 00:00 | US-2068316-A // Alternating current regulator // Farkas Samuel Francis // Bell Telephone Labor Inc | ||||
| PDF File 2013140.pdf | 456 kB | Shaun Ewing | Sept 03, 1935 00:00 |
|
US-2013140-A // Translating circuit // Friis Harald T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Sept 03, 1935 00:00 | US-2013140-A // Translating circuit // Friis Harald T. // Bell Telephone Labor Inc | ||||
| PDF File 2006470.pdf | 456 kB | Shaun Ewing | Jul 02, 1935 00:00 |
|
US-2006470-A // Telephone system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Jul 02, 1935 00:00 | US-2006470-A // Telephone system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 2022060.pdf | 456 kB | Shaun Ewing | Nov 26, 1935 00:00 |
|
US-2022060-A // Acoustic device // Swickard Andrew E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Nov 26, 1935 00:00 | US-2022060-A // Acoustic device // Swickard Andrew E. // Bell Telephone Labor Inc | ||||
| PDF File 2216893.pdf | 456 kB | Shaun Ewing | Oct 08, 1940 00:00 |
|
US-2216893-A // Concentric conductor transmission line // Smith Phillip H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Oct 08, 1940 00:00 | US-2216893-A // Concentric conductor transmission line // Smith Phillip H. // Bell Telephone Labor Inc | ||||
| PDF File 1788035.pdf | 456 kB | Shaun Ewing | Jan 06, 1931 00:00 |
|
US-1788035-A // Volume-control circuits // Stevenson George H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Jan 06, 1931 00:00 | US-1788035-A // Volume-control circuits // Stevenson George H. // Bell Telephone Labor Inc | ||||
| PDF File 2113256.pdf | 456 kB | Shaun Ewing | Apr 05, 1938 00:00 |
|
US-2113256-A // Film driving mechanism // Jeanne Armand L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Apr 05, 1938 00:00 | US-2113256-A // Film driving mechanism // Jeanne Armand L. // Bell Telephone Labor Inc | ||||
| PDF File 2185684.pdf | 455 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185684-A // Signal wave modulation // Bennett William R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185684-A // Signal wave modulation // Bennett William R. // Bell Telephone Labor Inc | ||||
| PDF File 2133831.pdf | 455 kB | Shaun Ewing | Oct 18, 1938 00:00 |
|
US-2133831-A // Lubricating device // Pritchard William T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Oct 18, 1938 00:00 | US-2133831-A // Lubricating device // Pritchard William T. // Bell Telephone Labor Inc | ||||
| PDF File 2107177.pdf | 455 kB | Shaun Ewing | Feb 01, 1938 00:00 |
|
US-2107177-A // Stranded conductor // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Feb 01, 1938 00:00 | US-2107177-A // Stranded conductor // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 1925693.pdf | 455 kB | Shaun Ewing | Sept 05, 1933 00:00 |
|
US-1925693-A // Glow discharge lamp // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Sept 05, 1933 00:00 | US-1925693-A // Glow discharge lamp // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1862571.pdf | 454 kB | Shaun Ewing | Jun 14, 1932 00:00 |
|
US-1862571-A // Terminal strip // Goff Harold W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Jun 14, 1932 00:00 | US-1862571-A // Terminal strip // Goff Harold W. // Bell Telephone Labor Inc | ||||
| PDF File 1897040.pdf | 454 kB | Shaun Ewing | Feb 14, 1933 00:00 |
|
US-1897040-A // Inductive device // Christopher Arthur J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Feb 14, 1933 00:00 | US-1897040-A // Inductive device // Christopher Arthur J. // Bell Telephone Labor Inc | ||||
| PDF File 2058210.pdf | 454 kB | Shaun Ewing | Oct 20, 1936 00:00 |
|
US-2058210-A // Wave transmission networks // Bode Hendrik W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Oct 20, 1936 00:00 | US-2058210-A // Wave transmission networks // Bode Hendrik W. // Bell Telephone Labor Inc | ||||
| PDF File 2156754.pdf | 453 kB | Shaun Ewing | May 02, 1939 00:00 |
|
US-2156754-A // Telephone hand-set // Evans William A. ; Werring Walter W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | May 02, 1939 00:00 | US-2156754-A // Telephone hand-set // Evans William A. ; Werring Walter W. // Bell Telephone Labor Inc | ||||
| PDF File 2170645.pdf | 453 kB | Shaun Ewing | Aug 22, 1939 00:00 |
|
US-2170645-A // High frequency amplifier // Peterson Liss C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170645-A // High frequency amplifier // Peterson Liss C. // Bell Telephone Labor Inc | ||||
| PDF File 2086579.pdf | 453 kB | Shaun Ewing | Jul 13, 1937 00:00 |
|
US-2086579-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Jul 13, 1937 00:00 | US-2086579-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 1803700.pdf | 453 kB | Shaun Ewing | May 05, 1931 00:00 |
|
US-1803700-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | May 05, 1931 00:00 | US-1803700-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1944218.pdf | 453 kB | Shaun Ewing | Jan 23, 1934 00:00 |
|
US-1944218-A // Telegraph repeater // Catogge Joseph J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Jan 23, 1934 00:00 | US-1944218-A // Telegraph repeater // Catogge Joseph J. // Bell Telephone Labor Inc | ||||
| PDF File 2146091.pdf | 453 kB | Shaun Ewing | Feb 07, 1939 00:00 |
|
US-2146091-A // Harmonic producing apparatus // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Feb 07, 1939 00:00 | US-2146091-A // Harmonic producing apparatus // Peterson Eugene // Bell Telephone Labor Inc |
