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 2345712.pdf | 558 kB | Shaun Ewing | Apr 04, 1944 00:00 |
|
US-2345712-A // Oscillation modulator // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Apr 04, 1944 00:00 | US-2345712-A // Oscillation modulator // Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2288452.pdf | 558 kB | Shaun Ewing | Jun 30, 1942 00:00 |
|
US-2288452-A // Electric switch // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Jun 30, 1942 00:00 | US-2288452-A // Electric switch // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2273945.pdf | 558 kB | Shaun Ewing | Feb 24, 1942 00:00 |
|
US-2273945-A // Two-way speech transmission // Fisher Harold J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Feb 24, 1942 00:00 | US-2273945-A // Two-way speech transmission // Fisher Harold J. // Bell Telephone Labor Inc | ||||
| PDF File 2379013.pdf | 558 kB | Shaun Ewing | Jun 26, 1945 00:00 |
|
US-2379013-A // Fuse construction // Lewis Herbert A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Jun 26, 1945 00:00 | US-2379013-A // Fuse construction // Lewis Herbert A. // Bell Telephone Labor Inc | ||||
| PDF File 2312566.pdf | 557 kB | Shaun Ewing | Mar 02, 1943 00:00 |
|
US-2312566-A // Telephone calling dial device // Lum George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Mar 02, 1943 00:00 | US-2312566-A // Telephone calling dial device // Lum George R. // Bell Telephone Labor Inc | ||||
| PDF File 2250529.pdf | 557 kB | Shaun Ewing | Jul 29, 1941 00:00 |
|
US-2250529-A // Signal translating apparatus // Gray Frank ; Johnson John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Jul 29, 1941 00:00 | US-2250529-A // Signal translating apparatus // Gray Frank ; Johnson John B. // Bell Telephone Labor Inc | ||||
| PDF File 2303419.pdf | 556 kB | Shaun Ewing | Dec 01, 1942 00:00 |
|
US-2303419-A // Two-way signal transmission system // Affel Herman A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Dec 01, 1942 00:00 | US-2303419-A // Two-way signal transmission system // Affel Herman A. // Bell Telephone Labor Inc | ||||
| PDF File 2284402.pdf | 555 kB | Shaun Ewing | May 26, 1942 00:00 |
|
US-2284402-A // Modulation circuit // Manley Jack M. ; Wrathall Leishman R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | May 26, 1942 00:00 | US-2284402-A // Modulation circuit // Manley Jack M. ; Wrathall Leishman R. // Bell Telephone Labor Inc | ||||
| PDF File 2287176.pdf | 555 kB | Shaun Ewing | Jun 23, 1942 00:00 |
|
US-2287176-A // Telephone coin collector // Hoyt Frederick A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Jun 23, 1942 00:00 | US-2287176-A // Telephone coin collector // Hoyt Frederick A. // Bell Telephone Labor Inc | ||||
| PDF File 2240286.pdf | 555 kB | Shaun Ewing | Apr 29, 1941 00:00 |
|
US-2240286-A // Amplifier // Cousins Van M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Apr 29, 1941 00:00 | US-2240286-A // Amplifier // Cousins Van M. // Bell Telephone Labor Inc | ||||
| PDF File 2280438.pdf | 555 kB | Shaun Ewing | Apr 21, 1942 00:00 |
|
US-2280438-A // Circuit controlling device // Matthews Emil C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Apr 21, 1942 00:00 | US-2280438-A // Circuit controlling device // Matthews Emil C. // Bell Telephone Labor Inc | ||||
| PDF File 2300371.pdf | 554 kB | Shaun Ewing | Oct 27, 1942 00:00 |
|
US-2300371-A // Switching device // Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Oct 27, 1942 00:00 | US-2300371-A // Switching device // Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 2298225.pdf | 554 kB | Shaun Ewing | Oct 06, 1942 00:00 |
|
US-2298225-A // Permanent magnet material and production thereof // Nesbitt Ethan A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Oct 06, 1942 00:00 | US-2298225-A // Permanent magnet material and production thereof // Nesbitt Ethan A. // Bell Telephone Labor Inc | ||||
| PDF File 2307463.pdf | 554 kB | Shaun Ewing | Jan 05, 1943 00:00 |
|
US-2307463-A // Telephone calling dial device // Lum George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Jan 05, 1943 00:00 | US-2307463-A // Telephone calling dial device // Lum George R. // Bell Telephone Labor Inc | ||||
| PDF File 2229158.pdf | 553 kB | Shaun Ewing | Jan 21, 1941 00:00 |
|
US-2229158-A // Switching of spare repeater sections // Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Jan 21, 1941 00:00 | US-2229158-A // Switching of spare repeater sections // Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2301490.pdf | 552 kB | Shaun Ewing | Nov 10, 1942 00:00 |
|
US-2301490-A // Electronic discharge device // Winans Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Nov 10, 1942 00:00 | US-2301490-A // Electronic discharge device // Winans Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 2293869.pdf | 551 kB | Shaun Ewing | Aug 25, 1942 00:00 |
|
US-2293869-A // Signaling system // Vaughan Henry E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 551 kB | Shaun Ewing | Aug 25, 1942 00:00 | US-2293869-A // Signaling system // Vaughan Henry E. // Bell Telephone Labor Inc | ||||
| PDF File 2388034.pdf | 550 kB | Shaun Ewing | Oct 30, 1945 00:00 |
|
US-2388034-A // Production of primary and secondary amines // Biggs Burnard S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Oct 30, 1945 00:00 | US-2388034-A // Production of primary and secondary amines // Biggs Burnard S. // Bell Telephone Labor Inc | ||||
| PDF File 2338405.pdf | 549 kB | Shaun Ewing | Jan 04, 1944 00:00 |
|
US-2338405-A // Protective system // Cash Claude C. ; Perkins Kenneth H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Jan 04, 1944 00:00 | US-2338405-A // Protective system // Cash Claude C. ; Perkins Kenneth H. // Bell Telephone Labor Inc | ||||
| PDF File 2251933.pdf | 549 kB | Shaun Ewing | Aug 12, 1941 00:00 |
|
US-2251933-A // Switching device // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Aug 12, 1941 00:00 | US-2251933-A // Switching device // Harrison Henry C. // Bell Telephone Labor Inc |
