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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2188758.pdf | 1.24 MB | Shaun Ewing | Jan 30, 1940 00:00 |
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US-2188758-A // Transmission and reception of frequency modulated waves // Nyquist Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Jan 30, 1940 00:00 | US-2188758-A // Transmission and reception of frequency modulated waves // Nyquist Harry // Bell Telephone Labor Inc | ||||
| PDF File 2188755.pdf | 629 kB | Shaun Ewing | Jan 30, 1940 00:00 |
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US-2188755-A // Method of producing multiconductor signaling cables // Markuson Oscar S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 629 kB | Shaun Ewing | Jan 30, 1940 00:00 | US-2188755-A // Method of producing multiconductor signaling cables // Markuson Oscar S. // Bell Telephone Labor Inc | ||||
| PDF File 2188671.pdf | 725 kB | Shaun Ewing | Jan 30, 1940 00:00 |
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US-2188671-A // Wave amplifying system // Wilson Ira G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 725 kB | Shaun Ewing | Jan 30, 1940 00:00 | US-2188671-A // Wave amplifying system // Wilson Ira G. // Bell Telephone Labor Inc | ||||
| PDF File 2188659.pdf | 497 kB | Shaun Ewing | Jan 30, 1940 00:00 |
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US-2188659-A // Selector switch brush // Hickman Clarence N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 497 kB | Shaun Ewing | Jan 30, 1940 00:00 | US-2188659-A // Selector switch brush // Hickman Clarence N. // Bell Telephone Labor Inc | ||||
| PDF File 2188164.pdf | 496 kB | Shaun Ewing | Jan 23, 1940 00:00 |
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US-2188164-A // Ground potential compensator // Sutiff Carleton B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Jan 23, 1940 00:00 | US-2188164-A // Ground potential compensator // Sutiff Carleton B. // Bell Telephone Labor Inc | ||||
| PDF File 2188159.pdf | 712 kB | Shaun Ewing | Jan 23, 1940 00:00 |
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US-2188159-A // Gas-filled space discharge tube circuits // Jr. George H. Rockwood, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 712 kB | Shaun Ewing | Jan 23, 1940 00:00 | US-2188159-A // Gas-filled space discharge tube circuits // Jr. George H. Rockwood, // Bell Telephone Labor Inc | ||||
| PDF File 2188154.pdf | 498 kB | Shaun Ewing | Jan 23, 1940 00:00 |
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US-2188154-A // Piezoelectric substance and process for producing it // Morgan Stanley O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 498 kB | Shaun Ewing | Jan 23, 1940 00:00 | US-2188154-A // Piezoelectric substance and process for producing it // Morgan Stanley O. // Bell Telephone Labor Inc | ||||
| PDF File 2187784.pdf | 1.36 MB | Shaun Ewing | Jan 23, 1940 00:00 |
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US-2187784-A // Telephone system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.36 MB | Shaun Ewing | Jan 23, 1940 00:00 | US-2187784-A // Telephone system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2187577.pdf | 641 kB | Shaun Ewing | Jan 16, 1940 00:00 |
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US-2187577-A // Switching mechanism // Stockfleth Sigurd J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 641 kB | Shaun Ewing | Jan 16, 1940 00:00 | US-2187577-A // Switching mechanism // Stockfleth Sigurd J. // Bell Telephone Labor Inc | ||||
| PDF File 2187158.pdf | 1.24 MB | Shaun Ewing | Jan 16, 1940 00:00 |
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US-2187158-A // Telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Jan 16, 1940 00:00 | US-2187158-A // Telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 2187115.pdf | 492 kB | Shaun Ewing | Jan 16, 1940 00:00 |
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US-2187115-A // Switching device // Ellwood Walter B. ; Holden William H. T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 492 kB | Shaun Ewing | Jan 16, 1940 00:00 | US-2187115-A // Switching device // Ellwood Walter B. ; Holden William H. T. // Bell Telephone Labor Inc | ||||
| PDF File 2187114.pdf | 372 kB | Shaun Ewing | Jan 16, 1940 00:00 |
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US-2187114-A // Pneumatic device // Ellwood Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 372 kB | Shaun Ewing | Jan 16, 1940 00:00 | US-2187114-A // Pneumatic device // Ellwood Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 2187104.pdf | 472 kB | Shaun Ewing | Jan 16, 1940 00:00 |
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US-2187104-A // Signaling system // Thorp Vaughn P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 472 kB | Shaun Ewing | Jan 16, 1940 00:00 | US-2187104-A // Signaling system // Thorp Vaughn P. // Bell Telephone Labor Inc | ||||
| PDF File 2186242.pdf | 791 kB | Shaun Ewing | Jan 09, 1940 00:00 |
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US-2186242-A // Telephone system // Halligan Clair W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 791 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186242-A // Telephone system // Halligan Clair W. // Bell Telephone Labor Inc | ||||
| PDF File 2186219.pdf | 1.02 MB | Shaun Ewing | Jan 09, 1940 00:00 |
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US-2186219-A // Telephone system // Toomey John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186219-A // Telephone system // Toomey John F. // Bell Telephone Labor Inc | ||||
| PDF File 2186217.pdf | 981 kB | Shaun Ewing | Jan 09, 1940 00:00 |
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US-2186217-A // Control of electric generating apparatus // Spencer Harry H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 981 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186217-A // Control of electric generating apparatus // Spencer Harry H. // Bell Telephone Labor Inc | ||||
| PDF File 2186150.pdf | 273 kB | Shaun Ewing | Jan 09, 1940 00:00 |
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US-2186150-A // Regenerative repeater // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 273 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186150-A // Regenerative repeater // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2186130.pdf | 1.59 MB | Shaun Ewing | Jan 09, 1940 00:00 |
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US-2186130-A // Detecting system // Wintringham William T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186130-A // Detecting system // Wintringham William T. // Bell Telephone Labor Inc | ||||
| PDF File 2186127.pdf | 490 kB | Shaun Ewing | Jan 09, 1940 00:00 |
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US-2186127-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 490 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186127-A // Electron discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 2185883.pdf | 276 kB | Shaun Ewing | Jan 02, 1940 00:00 |
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US-2185883-A // Strand winding machine // Berger Frederick C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 276 kB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185883-A // Strand winding machine // Berger Frederick C. // Bell Telephone Labor Inc |
