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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2140922.pdf | 223 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140922-A // Grid controlled rectifier circuit // Jr. George H. Rockwood, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 223 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140922-A // Grid controlled rectifier circuit // Jr. George H. Rockwood, // Bell Telephone Labor Inc | ||||
| PDF File 2140915.pdf | 983 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140915-A // Distortion correction in wave transmission // Jr. John G. Kreer, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 983 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140915-A // Distortion correction in wave transmission // Jr. John G. Kreer, // Bell Telephone Labor Inc | ||||
| PDF File 2140912.pdf | 533 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140912-A // Single side-band transmission system // Huber George H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140912-A // Single side-band transmission system // Huber George H. // Bell Telephone Labor Inc | ||||
| PDF File 2140900.pdf | 851 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140900-A // Distortion correction in wave transmission // Dixon John T. ; Jr. John G. Kreer, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 851 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140900-A // Distortion correction in wave transmission // Dixon John T. ; Jr. John G. Kreer, // Bell Telephone Labor Inc | ||||
| PDF File 2140894.pdf | 358 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140894-A // Terminal strip // Brown Wolfe W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 358 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140894-A // Terminal strip // Brown Wolfe W. // Bell Telephone Labor Inc | ||||
| PDF File 2140492.pdf | 723 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140492-A // Distortion correction in wave transmission // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 723 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140492-A // Distortion correction in wave transmission // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 2140174.pdf | 529 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2140174-A // Antenna accessory // Smith Phillip H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 529 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140174-A // Antenna accessory // Smith Phillip H. // Bell Telephone Labor Inc | ||||
| PDF File 2140154.pdf | 293 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2140154-A // Inductive device // Greenidge Ralph M. C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 293 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140154-A // Inductive device // Greenidge Ralph M. C. // Bell Telephone Labor Inc | ||||
| PDF File 2140145.pdf | 807 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2140145-A // Antenna system // Sterba Ernest J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140145-A // Antenna system // Sterba Ernest J. // Bell Telephone Labor Inc | ||||
| PDF File 2140139.pdf | 421 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2140139-A // Electromagnetic device // Pratt Edward J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140139-A // Electromagnetic device // Pratt Edward J. // Bell Telephone Labor Inc | ||||
| PDF File 2140138.pdf | 1.56 MB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2140138-A // Impulse transmitter // Miller Albert H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.56 MB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140138-A // Impulse transmitter // Miller Albert H. // Bell Telephone Labor Inc | ||||
| PDF File 2140126.pdf | 869 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2140126-A // Rotary switch // Broadwell Howard // Bell Telephone Labor Inc | |||
| Version 1 (current) | 869 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2140126-A // Rotary switch // Broadwell Howard // Bell Telephone Labor Inc | ||||
| PDF File 2139685.pdf | 740 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2139685-A // Electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 740 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2139685-A // Electron discharge device // Laico Joseph P. // Bell Telephone Labor Inc | ||||
| PDF File 2139678.pdf | 899 kB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2139678-A // Electron discharge device // Glass Myron S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 899 kB | Shaun Ewing | Dec 13, 1938 00:00 | US-2139678-A // Electron discharge device // Glass Myron S. // Bell Telephone Labor Inc | ||||
| PDF File 2139249.pdf | 575 kB | Shaun Ewing | Dec 06, 1938 00:00 |
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US-2139249-A // Telephone system // Welch Paul V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 575 kB | Shaun Ewing | Dec 06, 1938 00:00 | US-2139249-A // Telephone system // Welch Paul V. // Bell Telephone Labor Inc | ||||
| PDF File 2139247.pdf | 948 kB | Shaun Ewing | Dec 06, 1938 00:00 |
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US-2139247-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 948 kB | Shaun Ewing | Dec 06, 1938 00:00 | US-2139247-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 2139236.pdf | 725 kB | Shaun Ewing | Dec 06, 1938 00:00 |
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US-2139236-A // Gain control circuit // Kinzer John P. ; Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 725 kB | Shaun Ewing | Dec 06, 1938 00:00 | US-2139236-A // Gain control circuit // Kinzer John P. ; Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2139233.pdf | 729 kB | Shaun Ewing | Dec 06, 1938 00:00 |
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US-2139233-A // Multichannel television system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 729 kB | Shaun Ewing | Dec 06, 1938 00:00 | US-2139233-A // Multichannel television system // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 2139232.pdf | 472 kB | Shaun Ewing | Dec 06, 1938 00:00 |
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US-2139232-A // Transmission system // Hysko John L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 472 kB | Shaun Ewing | Dec 06, 1938 00:00 | US-2139232-A // Transmission system // Hysko John L. // Bell Telephone Labor Inc | ||||
| PDF File 2139230.pdf | 574 kB | Shaun Ewing | Dec 06, 1938 00:00 |
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US-2139230-A // High efficiency oscillator of the barkhausen type // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 574 kB | Shaun Ewing | Dec 06, 1938 00:00 | US-2139230-A // High efficiency oscillator of the barkhausen type // Heising Raymond A. // Bell Telephone Labor Inc |
