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 2184978.pdf | 724 kB | Shaun Ewing | Dec 26, 1939 00:00 |
|
US-2184978-A // Carrier current telegraphy // Nyquist Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 724 kB | Shaun Ewing | Dec 26, 1939 00:00 | US-2184978-A // Carrier current telegraphy // Nyquist Harry // Bell Telephone Labor Inc | ||||
| PDF File 2184979.pdf | 412 kB | Shaun Ewing | Dec 26, 1939 00:00 |
|
US-2184979-A // Signaling system // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 412 kB | Shaun Ewing | Dec 26, 1939 00:00 | US-2184979-A // Signaling system // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2185283.pdf | 896 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185283-A // Cathode ray discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 896 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185283-A // Cathode ray discharge device // Weinhart Howard W. // Bell Telephone Labor Inc | ||||
| PDF File 2185287.pdf | 2.21 MB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185287-A // Telephone system // Beaumont William M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.21 MB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185287-A // Telephone system // Beaumont William M. // Bell Telephone Labor Inc | ||||
| PDF File 2185300.pdf | 370 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185300-A // Telegraphone // Hickman Clarence N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 370 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185300-A // Telegraphone // Hickman Clarence N. // Bell Telephone Labor Inc | ||||
| PDF File 2185355.pdf | 913 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185355-A // Reactance device // Peterson Glen // Bell Telephone Labor Inc | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185355-A // Reactance device // Peterson Glen // Bell Telephone Labor Inc | ||||
| PDF File 2185374.pdf | 1002 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185374-A // Selective switch // Hickman Clarence N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1002 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185374-A // Selective switch // Hickman Clarence N. // Bell Telephone Labor Inc | ||||
| PDF File 2185599.pdf | 2.09 MB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185599-A // Piezoelectric apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.09 MB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185599-A // Piezoelectric apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2185603.pdf | 386 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185603-A // Electromagnetic device // Miller Daniel D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 386 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185603-A // Electromagnetic device // Miller Daniel D. // 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 2185687.pdf | 877 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185687-A // Carrier system with phase discrimination // Caruthers Robert S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 877 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185687-A // Carrier system with phase discrimination // Caruthers Robert S. // Bell Telephone Labor Inc | ||||
| PDF File 2185693.pdf | 716 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185693-A // Multiplex signaling system // Mertz Pierre // Bell Telephone Labor Inc | |||
| Version 1 (current) | 716 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185693-A // Multiplex signaling system // Mertz Pierre // Bell Telephone Labor Inc | ||||
| PDF File 2185851.pdf | 694 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185851-A // Signaling system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 694 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185851-A // Signaling system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 2185883.pdf | 276 kB | Shaun Ewing | Jan 02, 1940 00:00 |
|
US-2185883-A // Strand winding machine // Berger Frederick C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 276 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185883-A // Strand winding machine // Berger Frederick C. // Bell Telephone Labor Inc | ||||
| PDF File 2186127.pdf | 490 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186127-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 490 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186127-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 2186130.pdf | 1.59 MB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186130-A // Detecting system // Wintringham William T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186130-A // Detecting system // Wintringham William T. // Bell Telephone Labor Inc | ||||
| PDF File 2186150.pdf | 273 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186150-A // Regenerative repeater // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 273 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186150-A // Regenerative repeater // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2186217.pdf | 981 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186217-A // Control of electric generating apparatus // Spencer Harry H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 981 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186217-A // Control of electric generating apparatus // Spencer Harry H. // Bell Telephone Labor Inc | ||||
| PDF File 2186219.pdf | 1.02 MB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186219-A // Telephone system // Toomey John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186219-A // Telephone system // Toomey John F. // Bell Telephone Labor Inc | ||||
| PDF File 2186242.pdf | 791 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186242-A // Telephone system // Halligan Clair W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 791 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186242-A // Telephone system // Halligan Clair W. // Bell Telephone Labor Inc |
