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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| 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 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 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 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 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 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 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 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 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 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 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 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 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 2140930.pdf | 491 kB | Shaun Ewing | Dec 20, 1938 00:00 |
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US-2140930-A // Telephone system // Welch Paul V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 491 kB | Shaun Ewing | Dec 20, 1938 00:00 | US-2140930-A // Telephone system // Welch Paul V. // Bell Telephone Labor Inc | ||||
| PDF File 2141372.pdf | 3.13 MB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141372-A // Telephone system // Baumfalk John // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.13 MB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141372-A // Telephone system // Baumfalk John // Bell Telephone Labor Inc | ||||
| PDF File 2141373.pdf | 324 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141373-A // Electrical testing system // Blount Frank E. ; Husta Philip // Bell Telephone Labor Inc | |||
| Version 1 (current) | 324 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141373-A // Electrical testing system // Blount Frank E. ; Husta Philip // Bell Telephone Labor Inc | ||||
| PDF File 2141376.pdf | 987 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141376-A // Frequency regulation of oscillators in ultra short wave receivers // Chaffee Joseph G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 987 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141376-A // Frequency regulation of oscillators in ultra short wave receivers // Chaffee Joseph G. // Bell Telephone Labor Inc | ||||
| PDF File 2141378.pdf | 784 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141378-A // Electron discharge device // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 784 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141378-A // Electron discharge device // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2141387.pdf | 807 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141387-A // Electron discharge device // Hale Douglas A. S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 807 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141387-A // Electron discharge device // Hale Douglas A. S. // Bell Telephone Labor Inc | ||||
| PDF File 2141388.pdf | 678 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141388-A // Facsimile telegraph system // Harrison Henry C. ; Pope Thomas J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141388-A // Facsimile telegraph system // Harrison Henry C. ; Pope Thomas J. // Bell Telephone Labor Inc |
