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 2179818.pdf | 477 kB | Shaun Ewing | Nov 14, 1939 00:00 |
|
US-2179818-A // Electrically heated tool // Hampton Leon N. ; Shangle Amos H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 477 kB | Shaun Ewing | Nov 14, 1939 00:00 | US-2179818-A // Electrically heated tool // Hampton Leon N. ; Shangle Amos H. // Bell Telephone Labor Inc | ||||
| PDF File 2179640.pdf | 256 kB | Shaun Ewing | Nov 14, 1939 00:00 |
|
US-2179640-A // Relay // Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 256 kB | Shaun Ewing | Nov 14, 1939 00:00 | US-2179640-A // Relay // Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2179261.pdf | 380 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2179261-A // Method and apparatus for heating dielectric materials // Keller Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 380 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179261-A // Method and apparatus for heating dielectric materials // Keller Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 2179243.pdf | 727 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2179243-A // Cathode ray device // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 727 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179243-A // Cathode ray device // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 2179237.pdf | 456 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2179237-A // Tone generator // Stibitz George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179237-A // Tone generator // Stibitz George R. // Bell Telephone Labor Inc | ||||
| PDF File 2179106.pdf | 988 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2179106-A // Secrecy signaling system // Taylor Charles C. ; Wright Sumner B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 988 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179106-A // Secrecy signaling system // Taylor Charles C. ; Wright Sumner B. // Bell Telephone Labor Inc | ||||
| PDF File 2179098.pdf | 908 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2179098-A // Electro-optical apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 908 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179098-A // Electro-optical apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2179091.pdf | 930 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2179091-A // Coin collector // Hoyt Frederick A. ; Mills Percy E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 930 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2179091-A // Coin collector // Hoyt Frederick A. ; Mills Percy E. // Bell Telephone Labor Inc | ||||
| PDF File 2178954.pdf | 490 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2178954-A // Method and apparatus for testing electrical resistance // Dehmel Richard C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 490 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2178954-A // Method and apparatus for testing electrical resistance // Dehmel Richard C. // Bell Telephone Labor Inc | ||||
| PDF File 2178656.pdf | 926 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2178656-A // Electromagnetic switching device // Swenson Paul W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 926 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2178656-A // Electromagnetic switching device // Swenson Paul W. // Bell Telephone Labor Inc | ||||
| PDF File 2178653.pdf | 556 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2178653-A // Building-out unit // Slade Benjamin // Bell Telephone Labor Inc | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2178653-A // Building-out unit // Slade Benjamin // Bell Telephone Labor Inc | ||||
| PDF File 2178548.pdf | 627 kB | Shaun Ewing | Nov 07, 1939 00:00 |
|
US-2178548-A // Resistor // Black Knox C. ; Blair Royer R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 627 kB | Shaun Ewing | Nov 07, 1939 00:00 | US-2178548-A // Resistor // Black Knox C. ; Blair Royer R. // Bell Telephone Labor Inc | ||||
| PDF File 2178464.pdf | 407 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178464-A // Cathode ray sweep circuit // Jr. Millard Warner Baldwin, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 407 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178464-A // Cathode ray sweep circuit // Jr. Millard Warner Baldwin, // Bell Telephone Labor Inc | ||||
| PDF File 2178453.pdf | 873 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178453-A // Coupling circuits // Leibe Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 873 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178453-A // Coupling circuits // Leibe Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2178365.pdf | 287 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178365-A // Electric conductor // Brobst David R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 287 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178365-A // Electric conductor // Brobst David R. // Bell Telephone Labor Inc | ||||
| PDF File 2178333.pdf | 932 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178333-A // Gain control circuits // Blair Royer R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 932 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178333-A // Gain control circuits // Blair Royer R. // Bell Telephone Labor Inc | ||||
| PDF File 2178227.pdf | 763 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178227-A // Photoelectric tube // Glass Myron S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 763 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178227-A // Photoelectric tube // Glass Myron S. // Bell Telephone Labor Inc | ||||
| PDF File 2178151.pdf | 355 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178151-A // Relay contact spring // Wagar Harold N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 355 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178151-A // Relay contact spring // Wagar Harold N. // Bell Telephone Labor Inc | ||||
| PDF File 2178146.pdf | 471 kB | Shaun Ewing | Oct 31, 1939 00:00 |
|
US-2178146-A // Piezoelectric element // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Oct 31, 1939 00:00 | US-2178146-A // Piezoelectric element // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2177256.pdf | 637 kB | Shaun Ewing | Oct 24, 1939 00:00 |
|
US-2177256-A // Multichannel television system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Oct 24, 1939 00:00 | US-2177256-A // Multichannel television system // Ives Herbert E. // Bell Telephone Labor Inc |
