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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2130510.pdf | 423 kB | Shaun Ewing | Sept 20, 1938 00:00 |
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US-2130510-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 423 kB | Shaun Ewing | Sept 20, 1938 00:00 | US-2130510-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 2085077.pdf | 423 kB | Shaun Ewing | Jun 29, 1937 00:00 |
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US-2085077-A // Insulator // Fox Arthur L. ; Haskell Frederic V. ; Sturzenegger William C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 423 kB | Shaun Ewing | Jun 29, 1937 00:00 | US-2085077-A // Insulator // Fox Arthur L. ; Haskell Frederic V. ; Sturzenegger William C. // Bell Telephone Labor Inc | ||||
| PDF File 2131585.pdf | 423 kB | Shaun Ewing | Sept 27, 1938 00:00 |
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US-2131585-A // Supply circuit // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 423 kB | Shaun Ewing | Sept 27, 1938 00:00 | US-2131585-A // Supply circuit // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 2115828.pdf | 423 kB | Shaun Ewing | May 03, 1938 00:00 |
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US-2115828-A // Electron emitting cathode and method of preparation // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 423 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115828-A // Electron emitting cathode and method of preparation // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | ||||
| PDF File 1901400.pdf | 422 kB | Shaun Ewing | Mar 14, 1933 00:00 |
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US-1901400-A // Harmonic analyzer // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Mar 14, 1933 00:00 | US-1901400-A // Harmonic analyzer // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 2083373.pdf | 422 kB | Shaun Ewing | Jun 08, 1937 00:00 |
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US-2083373-A // Measuring tool // Hardesty James M. ; Lawson Clement C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Jun 08, 1937 00:00 | US-2083373-A // Measuring tool // Hardesty James M. ; Lawson Clement C. // Bell Telephone Labor Inc | ||||
| PDF File 1816621.pdf | 422 kB | Shaun Ewing | Jul 28, 1931 00:00 |
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US-1816621-A // Testing system // Stacy Leland J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Jul 28, 1931 00:00 | US-1816621-A // Testing system // Stacy Leland J. // Bell Telephone Labor Inc | ||||
| PDF File 1940093.pdf | 421 kB | Shaun Ewing | Dec 19, 1933 00:00 |
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US-1940093-A // Electric musical instrument // Lindridge Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Dec 19, 1933 00:00 | US-1940093-A // Electric musical instrument // Lindridge Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 1853924.pdf | 421 kB | Shaun Ewing | Apr 12, 1932 00:00 |
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US-1853924-A // Process for insulating magnetic bodies // Owens Conrad D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Apr 12, 1932 00:00 | US-1853924-A // Process for insulating magnetic bodies // Owens Conrad D. // 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 1947209.pdf | 421 kB | Shaun Ewing | Feb 13, 1934 00:00 |
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US-1947209-A // Speech amplitude control // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Feb 13, 1934 00:00 | US-1947209-A // Speech amplitude control // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 2136630.pdf | 420 kB | Shaun Ewing | Nov 15, 1938 00:00 |
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US-2136630-A // Telephone system // Massonneau Robert F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 420 kB | Shaun Ewing | Nov 15, 1938 00:00 | US-2136630-A // Telephone system // Massonneau Robert F. // Bell Telephone Labor Inc | ||||
| PDF File 1845041.pdf | 419 kB | Shaun Ewing | Feb 16, 1932 00:00 |
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US-1845041-A // Insulated electric conductor // Boving Henrik // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | Feb 16, 1932 00:00 | US-1845041-A // Insulated electric conductor // Boving Henrik // Bell Telephone Labor Inc | ||||
| PDF File 2044369.pdf | 419 kB | Shaun Ewing | Jun 16, 1936 00:00 |
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US-2044369-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | Jun 16, 1936 00:00 | US-2044369-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 1941110.pdf | 419 kB | Shaun Ewing | Dec 26, 1933 00:00 |
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US-1941110-A // Electron discharge device // Ronci Victor L. ; Crawford Allen I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | Dec 26, 1933 00:00 | US-1941110-A // Electron discharge device // Ronci Victor L. ; Crawford Allen I. // Bell Telephone Labor Inc | ||||
| PDF File 2206224.pdf | 419 kB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206224-A // Telephone call transmitter // Field Joseph C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206224-A // Telephone call transmitter // Field Joseph C. // Bell Telephone Labor Inc | ||||
| PDF File 2118179.pdf | 419 kB | Shaun Ewing | May 24, 1938 00:00 |
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US-2118179-A // Telegraphone // Ellis William C. ; Greiner Earl S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118179-A // Telegraphone // Ellis William C. ; Greiner Earl S. // Bell Telephone Labor Inc | ||||
| PDF File 1914124.pdf | 418 kB | Shaun Ewing | Jun 13, 1933 00:00 |
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US-1914124-A // Telephone system // Harper Robert W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 418 kB | Shaun Ewing | Jun 13, 1933 00:00 | US-1914124-A // Telephone system // Harper Robert W. // Bell Telephone Labor Inc | ||||
| PDF File 1960029.pdf | 418 kB | Shaun Ewing | May 22, 1934 00:00 |
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US-1960029-A // Electrodeposition of alloys // Russell Alexander G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 418 kB | Shaun Ewing | May 22, 1934 00:00 | US-1960029-A // Electrodeposition of alloys // Russell Alexander G. // Bell Telephone Labor Inc | ||||
| PDF File 1863322.pdf | 418 kB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1863322-A // Telephone pay station // Bennett Arthur F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 418 kB | Shaun Ewing | Jun 14, 1932 00:00 | US-1863322-A // Telephone pay station // Bennett Arthur F. // Bell Telephone Labor Inc |
