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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2170046.pdf | 1.26 MB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170046-A // Negative feedback amplifier // Anderson Frithiof B. ; Clement Andrew W. ; Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170046-A // Negative feedback amplifier // Anderson Frithiof B. ; Clement Andrew W. ; Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2169851.pdf | 562 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169851-A // Transmission level transient change indicator // Romnes Haakon I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 562 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169851-A // Transmission level transient change indicator // Romnes Haakon I. // Bell Telephone Labor Inc | ||||
| PDF File 2169842.pdf | 1.51 MB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169842-A // Electronic organ // Kannenberg Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169842-A // Electronic organ // Kannenberg Walter F. // Bell Telephone Labor Inc | ||||
| PDF File 2169821.pdf | 647 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169821-A // Electrical switching and control system // Swart Leland K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 647 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169821-A // Electrical switching and control system // Swart Leland K. // Bell Telephone Labor Inc | ||||
| PDF File 2169740.pdf | 279 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169740-A // Relay // Jr. Robert L. Peek, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 279 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169740-A // Relay // Jr. Robert L. Peek, // Bell Telephone Labor Inc | ||||
| PDF File 2169732.pdf | 308 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169732-A // Method of making magnetic bodies // Legg Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 308 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169732-A // Method of making magnetic bodies // Legg Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 2169727.pdf | 346 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169727-A // Distributing frame // Graham Frank H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 346 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169727-A // Distributing frame // Graham Frank H. // Bell Telephone Labor Inc | ||||
| PDF File 2169570.pdf | 690 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169570-A // Sealed joint for conductors // Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 690 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169570-A // Sealed joint for conductors // Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2169553.pdf | 681 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169553-A // Directive radio system // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 681 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169553-A // Directive radio system // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 2169551.pdf | 411 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169551-A // Electromagnet for switching devices // Baker Clarence I. ; Jr. Emil C. Mueller, ; Redmond Frederic J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 411 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169551-A // Electromagnet for switching devices // Baker Clarence I. ; Jr. Emil C. Mueller, ; Redmond Frederic J. // Bell Telephone Labor Inc | ||||
| PDF File 2169396.pdf | 1006 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169396-A // Signal-translating apparatus // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1006 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169396-A // Signal-translating apparatus // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 2169389.pdf | 825 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169389-A // Selector release circuit // Keckler Charles W. ; Raynsford Arthur // Bell Telephone Labor Inc | |||
| Version 1 (current) | 825 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169389-A // Selector release circuit // Keckler Charles W. ; Raynsford Arthur // Bell Telephone Labor Inc | ||||
| PDF File 2169301.pdf | 523 kB | Shaun Ewing | Aug 15, 1939 00:00 |
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US-2169301-A // Wave filter // Sykes Roger A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 523 kB | Shaun Ewing | Aug 15, 1939 00:00 | US-2169301-A // Wave filter // Sykes Roger A. // Bell Telephone Labor Inc | ||||
| PDF File 2169179.pdf | 783 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2169179-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 783 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2169179-A // Electrooptical system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2168769.pdf | 246 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2168769-A // Protector // Fisher Earl L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 246 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2168769-A // Protector // Fisher Earl L. // Bell Telephone Labor Inc | ||||
| PDF File 2168760.pdf | 999 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2168760-A // Cathode ray device // Calbick Chester J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 999 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2168760-A // Cathode ray device // Calbick Chester J. // Bell Telephone Labor Inc | ||||
| PDF File 2168757.pdf | 636 kB | Shaun Ewing | Aug 08, 1939 00:00 |
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US-2168757-A // Cable plug in sleeves // Baillard Hamilton ; Pike Vernon B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 636 kB | Shaun Ewing | Aug 08, 1939 00:00 | US-2168757-A // Cable plug in sleeves // Baillard Hamilton ; Pike Vernon B. // Bell Telephone Labor Inc | ||||
| PDF File 2168049.pdf | 637 kB | Shaun Ewing | Aug 01, 1939 00:00 |
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US-2168049-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Aug 01, 1939 00:00 | US-2168049-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2168048.pdf | 639 kB | Shaun Ewing | Aug 01, 1939 00:00 |
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US-2168048-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Aug 01, 1939 00:00 | US-2168048-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2168047.pdf | 1.39 MB | Shaun Ewing | Aug 01, 1939 00:00 |
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US-2168047-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.39 MB | Shaun Ewing | Aug 01, 1939 00:00 | US-2168047-A // Electro-optical system // Skellett Albert M. // Bell Telephone Labor Inc |
