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 2161456.pdf | 1.02 MB | Shaun Ewing | Jun 06, 1939 00:00 |
|
US-2161456-A // Telephone system // Collis Raymond E. ; Newsom James B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Jun 06, 1939 00:00 | US-2161456-A // Telephone system // Collis Raymond E. ; Newsom James B. // Bell Telephone Labor Inc | ||||
| PDF File 2161005.pdf | 443 kB | Shaun Ewing | Jun 06, 1939 00:00 |
|
US-2161005-A // Electron discharge device // Bieling Carl A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 443 kB | Shaun Ewing | Jun 06, 1939 00:00 | US-2161005-A // Electron discharge device // Bieling Carl A. // Bell Telephone Labor Inc | ||||
| PDF File 2160876.pdf | 705 kB | Shaun Ewing | Jun 06, 1939 00:00 |
|
US-2160876-A // Electromechanical transducer // Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 705 kB | Shaun Ewing | Jun 06, 1939 00:00 | US-2160876-A // Electromechanical transducer // Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2160823.pdf | 791 kB | Shaun Ewing | Jun 06, 1939 00:00 |
|
US-2160823-A // Control of electromagnets // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 791 kB | Shaun Ewing | Jun 06, 1939 00:00 | US-2160823-A // Control of electromagnets // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 2160799.pdf | 686 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160799-A // Electron discharge device // Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 686 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160799-A // Electron discharge device // Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2160798.pdf | 1.01 MB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160798-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.01 MB | Shaun Ewing | May 30, 1939 00:00 | US-2160798-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2160797.pdf | 574 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160797-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 574 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160797-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2160796.pdf | 827 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160796-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 827 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160796-A // Electron discharge apparatus // Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2160646.pdf | 328 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160646-A // Electric condenser // Coutlee Kenneth G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 328 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160646-A // Electric condenser // Coutlee Kenneth G. // Bell Telephone Labor Inc | ||||
| PDF File 2160638.pdf | 216 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160638-A // Sound-absorbing unit // Bedell Eual H. ; Sivian Leon J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 216 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160638-A // Sound-absorbing unit // Bedell Eual H. ; Sivian Leon J. // Bell Telephone Labor Inc | ||||
| PDF File 2160507.pdf | 339 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160507-A // Signaling system // Krom Myron E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 339 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160507-A // Signaling system // Krom Myron E. // Bell Telephone Labor Inc | ||||
| PDF File 2160478.pdf | 540 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160478-A // Mounting for electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 540 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160478-A // Mounting for electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc | ||||
| PDF File 2160390.pdf | 260 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160390-A // Two-way operating mechanism for shutters // Pfannenstiehl Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 260 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160390-A // Two-way operating mechanism for shutters // Pfannenstiehl Harry // Bell Telephone Labor Inc | ||||
| PDF File 2160383.pdf | 408 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160383-A // Light sensitive electric device and circuit therefor // Kannenberg Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 408 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160383-A // Light sensitive electric device and circuit therefor // Kannenberg Walter F. // Bell Telephone Labor Inc | ||||
| PDF File 2160086.pdf | 742 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160086-A // Electron discharge device // Ronci Victor L. ; West John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 742 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160086-A // Electron discharge device // Ronci Victor L. ; West John W. // Bell Telephone Labor Inc | ||||
| PDF File 2160017.pdf | 459 kB | Shaun Ewing | May 30, 1939 00:00 |
|
US-2160017-A // Signaling system // Hearn Richard B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | May 30, 1939 00:00 | US-2160017-A // Signaling system // Hearn Richard B. // Bell Telephone Labor Inc | ||||
| PDF File 2159751.pdf | 286 kB | Shaun Ewing | May 23, 1939 00:00 |
|
US-2159751-A // Signaling system // Saul George N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 286 kB | Shaun Ewing | May 23, 1939 00:00 | US-2159751-A // Signaling system // Saul George N. // Bell Telephone Labor Inc | ||||
| PDF File 2159747.pdf | 540 kB | Shaun Ewing | May 23, 1939 00:00 |
|
US-2159747-A // Glow discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 540 kB | Shaun Ewing | May 23, 1939 00:00 | US-2159747-A // Glow discharge device // Mendenhall Hallam E. // Bell Telephone Labor Inc | ||||
| PDF File 2159597.pdf | 650 kB | Shaun Ewing | May 23, 1939 00:00 |
|
US-2159597-A // Frequency conversion circuits // Miller Ralph L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 650 kB | Shaun Ewing | May 23, 1939 00:00 | US-2159597-A // Frequency conversion circuits // Miller Ralph L. // Bell Telephone Labor Inc | ||||
| PDF File 2159596.pdf | 825 kB | Shaun Ewing | May 23, 1939 00:00 |
|
US-2159596-A // Frequency conversion circuits // Miller Ralph L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 825 kB | Shaun Ewing | May 23, 1939 00:00 | US-2159596-A // Frequency conversion circuits // Miller Ralph L. // Bell Telephone Labor Inc |
