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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| 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 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 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 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 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 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 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 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 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 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 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 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 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 2170206.pdf | 883 kB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170206-A // Electrical and electromechanical system employing magnetostrictive devices // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 883 kB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170206-A // Electrical and electromechanical system employing magnetostrictive devices // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2170397.pdf | 1.86 MB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170397-A // Signal transmission system // Bjornson Bjorn G. ; Bryant Newton W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.86 MB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170397-A // Signal transmission system // Bjornson Bjorn G. ; Bryant Newton W. // Bell Telephone Labor Inc | ||||
| PDF File 2170403.pdf | 1.49 MB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170403-A // Telephone system // Goddard Myron C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.49 MB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170403-A // Telephone system // Goddard Myron C. // Bell Telephone Labor Inc | ||||
| PDF File 2170571.pdf | 256 kB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170571-A // Acoustic device // Mott Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 256 kB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170571-A // Acoustic device // Mott Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 2170645.pdf | 453 kB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170645-A // High frequency amplifier // Peterson Liss C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 453 kB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170645-A // High frequency amplifier // Peterson Liss C. // Bell Telephone Labor Inc | ||||
| PDF File 2170650.pdf | 237 kB | Shaun Ewing | Aug 22, 1939 00:00 |
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US-2170650-A // Alloy // Bouton George M. ; Schumacher Earle E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 237 kB | Shaun Ewing | Aug 22, 1939 00:00 | US-2170650-A // Alloy // Bouton George M. ; Schumacher Earle E. // Bell Telephone Labor Inc | ||||
| PDF File 2170812.pdf | 461 kB | Shaun Ewing | Aug 29, 1939 00:00 |
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US-2170812-A // Frequency modulation // Lange Owen E. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 461 kB | Shaun Ewing | Aug 29, 1939 00:00 | US-2170812-A // Frequency modulation // Lange Owen E. De // Bell Telephone Labor Inc |
