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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2219021.pdf | 1.30 MB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2219021-A // Frequency changing // Riesz Robert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Oct 22, 1940 00:00 | US-2219021-A // Frequency changing // Riesz Robert R. // Bell Telephone Labor Inc | ||||
| PDF File 2218923.pdf | 590 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218923-A // Measurement of frequency modulated waves // Newhouse Russell C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 590 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218923-A // Measurement of frequency modulated waves // Newhouse Russell C. // Bell Telephone Labor Inc | ||||
| PDF File 2218921.pdf | 714 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218921-A // Concentric conductor transmission line // Mueller Louis C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 714 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218921-A // Concentric conductor transmission line // Mueller Louis C. // Bell Telephone Labor Inc | ||||
| PDF File 2218735.pdf | 526 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218735-A // Piezoelectric plate holder // Ziegler Arthur W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218735-A // Piezoelectric plate holder // Ziegler Arthur W. // Bell Telephone Labor Inc | ||||
| PDF File 2218711.pdf | 549 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218711-A // Electrical switching device // Hubbard Francis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218711-A // Electrical switching device // Hubbard Francis A. // Bell Telephone Labor Inc | ||||
| PDF File 2218709.pdf | 1.18 MB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218709-A // Electric circuit // Hefele John R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218709-A // Electric circuit // Hefele John R. // Bell Telephone Labor Inc | ||||
| PDF File 2218629.pdf | 526 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218629-A // Protective device for electrical instruments // Swart Leland K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218629-A // Protective device for electrical instruments // Swart Leland K. // Bell Telephone Labor Inc | ||||
| PDF File 2218609.pdf | 881 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218609-A // Electromagnetic apparatus // Henning Harley A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 881 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218609-A // Electromagnetic apparatus // Henning Harley A. // Bell Telephone Labor Inc | ||||
| PDF File 2218526.pdf | 1.00 MB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218526-A // Transmission of frequencymodulated waves // Lange Owen E. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218526-A // Transmission of frequencymodulated waves // Lange Owen E. De // Bell Telephone Labor Inc | ||||
| PDF File 2218524.pdf | 384 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2218524-A // Frequency modulation system // Chaffee Joseph G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 384 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2218524-A // Frequency modulation system // Chaffee Joseph G. // Bell Telephone Labor Inc | ||||
| PDF File 2218330.pdf | 746 kB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2218330-A // Ventilator // Ellason Oscar C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 746 kB | Shaun Ewing | Oct 15, 1940 00:00 | US-2218330-A // Ventilator // Ellason Oscar C. // Bell Telephone Labor Inc | ||||
| PDF File 2218328.pdf | 550 kB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2218328-A // Telephone set // Curran Stanley T. ; Kuhn John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Oct 15, 1940 00:00 | US-2218328-A // Telephone set // Curran Stanley T. ; Kuhn John J. // Bell Telephone Labor Inc | ||||
| PDF File 2218225.pdf | 1.24 MB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2218225-A // Piezoelectric apparatus // Willard Gerald W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Oct 15, 1940 00:00 | US-2218225-A // Piezoelectric apparatus // Willard Gerald W. // Bell Telephone Labor Inc | ||||
| PDF File 2218211.pdf | 1.71 MB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2218211-A // Telephotography // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.71 MB | Shaun Ewing | Oct 15, 1940 00:00 | US-2218211-A // Telephotography // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 2218200.pdf | 1.31 MB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2218200-A // Piezoelectric apparatus // Lack Frederick R. ; Willard Gerald W. ; Fair Irvin E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.31 MB | Shaun Ewing | Oct 15, 1940 00:00 | US-2218200-A // Piezoelectric apparatus // Lack Frederick R. ; Willard Gerald W. ; Fair Irvin E. // Bell Telephone Labor Inc | ||||
| PDF File 2217774.pdf | 1004 kB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2217774-A // Electron discharge apparatus // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1004 kB | Shaun Ewing | Oct 15, 1940 00:00 | US-2217774-A // Electron discharge apparatus // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2217769.pdf | 547 kB | Shaun Ewing | Oct 15, 1940 00:00 |
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US-2217769-A // Signaling system // Price Arnold F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Oct 15, 1940 00:00 | US-2217769-A // Signaling system // Price Arnold F. // Bell Telephone Labor Inc | ||||
| PDF File 2217417.pdf | 723 kB | Shaun Ewing | Oct 08, 1940 00:00 |
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US-2217417-A // Electron discharge apparatus // Peterson Liss C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 723 kB | Shaun Ewing | Oct 08, 1940 00:00 | US-2217417-A // Electron discharge apparatus // Peterson Liss C. // Bell Telephone Labor Inc | ||||
| PDF File 2217334.pdf | 640 kB | Shaun Ewing | Oct 08, 1940 00:00 |
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US-2217334-A // Screen for electro-optical device and method of preparing it // Diggory Benjamin A. ; Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 640 kB | Shaun Ewing | Oct 08, 1940 00:00 | US-2217334-A // Screen for electro-optical device and method of preparing it // Diggory Benjamin A. ; Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2217205.pdf | 703 kB | Shaun Ewing | Oct 08, 1940 00:00 |
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US-2217205-A // Photoelectric tube // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 703 kB | Shaun Ewing | Oct 08, 1940 00:00 | US-2217205-A // Photoelectric tube // Jr. Charles H. Prescott, // Bell Telephone Labor Inc |
