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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| 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 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 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 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 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 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 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 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 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 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 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 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 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 2219189.pdf | 358 kB | Shaun Ewing | Oct 22, 1940 00:00 |
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US-2219189-A // Frequency selective amplifier // Lundstrom Alexis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 358 kB | Shaun Ewing | Oct 22, 1940 00:00 | US-2219189-A // Frequency selective amplifier // Lundstrom Alexis A. // Bell Telephone Labor Inc | ||||
| PDF File 2219365.pdf | 403 kB | Shaun Ewing | Oct 29, 1940 00:00 |
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US-2219365-A // Electrical resistance device and method of manufacture thereof // Janssen William F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 403 kB | Shaun Ewing | Oct 29, 1940 00:00 | US-2219365-A // Electrical resistance device and method of manufacture thereof // Janssen William F. // Bell Telephone Labor Inc | ||||
| PDF File 2219451.pdf | 402 kB | Shaun Ewing | Oct 29, 1940 00:00 |
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US-2219451-A // Locking device // Mccormick Charles G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 402 kB | Shaun Ewing | Oct 29, 1940 00:00 | US-2219451-A // Locking device // Mccormick Charles G. // Bell Telephone Labor Inc | ||||
| PDF File 2219459.pdf | 876 kB | Shaun Ewing | Oct 29, 1940 00:00 |
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US-2219459-A // Power plant // Spencer Harry H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 876 kB | Shaun Ewing | Oct 29, 1940 00:00 | US-2219459-A // Power plant // Spencer Harry H. // Bell Telephone Labor Inc | ||||
| PDF File 2219749.pdf | 734 kB | Shaun Ewing | Oct 29, 1940 00:00 |
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US-2219749-A // Single side band diversity radio receiving system // Oswald Arthur A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 734 kB | Shaun Ewing | Oct 29, 1940 00:00 | US-2219749-A // Single side band diversity radio receiving system // Oswald Arthur A. // Bell Telephone Labor Inc | ||||
| PDF File 2219751.pdf | 825 kB | Shaun Ewing | Oct 29, 1940 00:00 |
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US-2219751-A // Single side band diversity radio receiving system // Polkinghorn Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 825 kB | Shaun Ewing | Oct 29, 1940 00:00 | US-2219751-A // Single side band diversity radio receiving system // Polkinghorn Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2220088.pdf | 528 kB | Shaun Ewing | Nov 05, 1940 00:00 |
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US-2220088-A // Reed type voice frequency generator // Dowey Thomas L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 528 kB | Shaun Ewing | Nov 05, 1940 00:00 | US-2220088-A // Reed type voice frequency generator // Dowey Thomas L. // Bell Telephone Labor Inc |
