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 2281441.pdf | 536 kB | Shaun Ewing | Apr 28, 1942 00:00 |
|
US-2281441-A // Electric signaling // Jr. Arthur W. Horton, ; Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 536 kB | Shaun Ewing | Apr 28, 1942 00:00 | US-2281441-A // Electric signaling // Jr. Arthur W. Horton, ; Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2315000.pdf | 536 kB | Shaun Ewing | Mar 30, 1943 00:00 |
|
US-2315000-A // Telephone system // Logan Mason A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 536 kB | Shaun Ewing | Mar 30, 1943 00:00 | US-2315000-A // Telephone system // Logan Mason A. // Bell Telephone Labor Inc | ||||
| PDF File 2345705.pdf | 536 kB | Shaun Ewing | Apr 04, 1944 00:00 |
|
US-2345705-A // Telephone booth // Kuntz Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 536 kB | Shaun Ewing | Apr 04, 1944 00:00 | US-2345705-A // Telephone booth // Kuntz Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2387825.pdf | 535 kB | Shaun Ewing | Oct 30, 1945 00:00 |
|
US-2387825-A // Conoscope and method of using the same // Bond Walter L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Oct 30, 1945 00:00 | US-2387825-A // Conoscope and method of using the same // Bond Walter L. // Bell Telephone Labor Inc | ||||
| PDF File 2272613.pdf | 535 kB | Shaun Ewing | Feb 10, 1942 00:00 |
|
US-2272613-A // Transmission with level equalizing // Phelps Walter A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Feb 10, 1942 00:00 | US-2272613-A // Transmission with level equalizing // Phelps Walter A. // Bell Telephone Labor Inc | ||||
| PDF File 2275625.pdf | 535 kB | Shaun Ewing | Mar 10, 1942 00:00 |
|
US-2275625-A // Electromagnetic motor unit // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Mar 10, 1942 00:00 | US-2275625-A // Electromagnetic motor unit // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2337423.pdf | 535 kB | Shaun Ewing | Dec 21, 1943 00:00 |
|
US-2337423-A // Negative feed-back amplifier // Stillwell Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Dec 21, 1943 00:00 | US-2337423-A // Negative feed-back amplifier // Stillwell Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 2254037.pdf | 535 kB | Shaun Ewing | Aug 26, 1941 00:00 |
|
US-2254037-A // Polarized relay // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Aug 26, 1941 00:00 | US-2254037-A // Polarized relay // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 2319321.pdf | 534 kB | Shaun Ewing | May 18, 1943 00:00 |
|
US-2319321-A // Magnetic dial // Head George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 534 kB | Shaun Ewing | May 18, 1943 00:00 | US-2319321-A // Magnetic dial // Head George A. // Bell Telephone Labor Inc | ||||
| PDF File 2314187.pdf | 534 kB | Shaun Ewing | Mar 16, 1943 00:00 |
|
US-2314187-A // Signaling system // Abbott Henry H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 534 kB | Shaun Ewing | Mar 16, 1943 00:00 | US-2314187-A // Signaling system // Abbott Henry H. // Bell Telephone Labor Inc | ||||
| PDF File 2379047.pdf | 534 kB | Shaun Ewing | Jun 26, 1945 00:00 |
|
US-2379047-A // Bridging conductor // Thomas Alton B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 534 kB | Shaun Ewing | Jun 26, 1945 00:00 | US-2379047-A // Bridging conductor // Thomas Alton B. // Bell Telephone Labor Inc | ||||
| PDF File 2332091.pdf | 533 kB | Shaun Ewing | Oct 19, 1943 00:00 |
|
US-2332091-A // Ventilating system for telephone booths // Kuhn John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Oct 19, 1943 00:00 | US-2332091-A // Ventilating system for telephone booths // Kuhn John J. // Bell Telephone Labor Inc | ||||
| PDF File 2372782.pdf | 533 kB | Shaun Ewing | Apr 03, 1945 00:00 |
|
US-2372782-A // Selector switch // Holden William H. T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Apr 03, 1945 00:00 | US-2372782-A // Selector switch // Holden William H. T. // Bell Telephone Labor Inc | ||||
| PDF File 2230649.pdf | 533 kB | Shaun Ewing | Feb 04, 1941 00:00 |
|
US-2230649-A // Variable electric capacity device // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230649-A // Variable electric capacity device // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2340224.pdf | 533 kB | Shaun Ewing | Jan 25, 1944 00:00 |
|
US-2340224-A // Telegraph signal distortion measuring circuit // Lang Wilmarth Y. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Jan 25, 1944 00:00 | US-2340224-A // Telegraph signal distortion measuring circuit // Lang Wilmarth Y. // Bell Telephone Labor Inc | ||||
| PDF File 2339425.pdf | 533 kB | Shaun Ewing | Jan 18, 1944 00:00 |
|
US-2339425-A // Toll switchboard // Porter Leslie F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Jan 18, 1944 00:00 | US-2339425-A // Toll switchboard // Porter Leslie F. // Bell Telephone Labor Inc | ||||
| PDF File 2379891.pdf | 533 kB | Shaun Ewing | Jul 10, 1945 00:00 |
|
US-2379891-A // Sound translating device // Eckardt Helmuth // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Jul 10, 1945 00:00 | US-2379891-A // Sound translating device // Eckardt Helmuth // Bell Telephone Labor Inc | ||||
| PDF File 2264396.pdf | 532 kB | Shaun Ewing | Dec 02, 1941 00:00 |
|
US-2264396-A // Power line carrier frequency telephone system // Moore Hilbert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 532 kB | Shaun Ewing | Dec 02, 1941 00:00 | US-2264396-A // Power line carrier frequency telephone system // Moore Hilbert R. // Bell Telephone Labor Inc | ||||
| PDF File 2282744.pdf | 532 kB | Shaun Ewing | May 12, 1942 00:00 |
|
US-2282744-A // Volume control circuit // Polkinghorn Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 532 kB | Shaun Ewing | May 12, 1942 00:00 | US-2282744-A // Volume control circuit // Polkinghorn Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2346461.pdf | 531 kB | Shaun Ewing | Apr 11, 1944 00:00 |
|
US-2346461-A // Gas pressure alarm system for cables // Shackleton Samuel P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 531 kB | Shaun Ewing | Apr 11, 1944 00:00 | US-2346461-A // Gas pressure alarm system for cables // Shackleton Samuel P. // Bell Telephone Labor Inc |
