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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2087327.pdf | 644 kB | Shaun Ewing | Jul 20, 1937 00:00 |
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US-2087327-A // Electron discharge device // Mcnally James O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 644 kB | Shaun Ewing | Jul 20, 1937 00:00 | US-2087327-A // Electron discharge device // Mcnally James O. // Bell Telephone Labor Inc | ||||
| PDF File 1860556.pdf | 643 kB | Shaun Ewing | May 31, 1932 00:00 |
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US-1860556-A // Regulator // Sole John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 643 kB | Shaun Ewing | May 31, 1932 00:00 | US-1860556-A // Regulator // Sole John H. // Bell Telephone Labor Inc | ||||
| PDF File 2126535.pdf | 641 kB | Shaun Ewing | Aug 09, 1938 00:00 |
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US-2126535-A // Teletypewriter system // Corwin Thomas L. ; Swezey Burdette S. ; Watson Edward F. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 641 kB | Shaun Ewing | Aug 09, 1938 00:00 | US-2126535-A // Teletypewriter system // Corwin Thomas L. ; Swezey Burdette S. ; Watson Edward F. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| 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 1914186.pdf | 641 kB | Shaun Ewing | Jun 13, 1933 00:00 |
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US-1914186-A // Translating device // Wente Edward C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 641 kB | Shaun Ewing | Jun 13, 1933 00:00 | US-1914186-A // Translating device // Wente Edward C. // Bell Telephone Labor Inc | ||||
| PDF File 2092485.pdf | 640 kB | Shaun Ewing | Sept 07, 1937 00:00 |
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US-2092485-A // Prepayment telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 640 kB | Shaun Ewing | Sept 07, 1937 00:00 | US-2092485-A // Prepayment telephone system // Ulrich Horace W. // 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 2135596.pdf | 640 kB | Shaun Ewing | Nov 08, 1938 00:00 |
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US-2135596-A // Relay circuit // Nyquist Harry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 640 kB | Shaun Ewing | Nov 08, 1938 00:00 | US-2135596-A // Relay circuit // Nyquist Harry // Bell Telephone Labor Inc | ||||
| PDF File 1844973.pdf | 640 kB | Shaun Ewing | Feb 16, 1932 00:00 |
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US-1844973-A // Radio communication system // Ports Earl G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 640 kB | Shaun Ewing | Feb 16, 1932 00:00 | US-1844973-A // Radio communication system // Ports Earl G. // 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 2212840.pdf | 639 kB | Shaun Ewing | Aug 27, 1940 00:00 |
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US-2212840-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Aug 27, 1940 00:00 | US-2212840-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2111625.pdf | 639 kB | Shaun Ewing | Mar 22, 1938 00:00 |
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US-2111625-A // Electron discharge device // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Mar 22, 1938 00:00 | US-2111625-A // Electron discharge device // Heising Raymond A. // Bell Telephone Labor Inc | ||||
| PDF File 2165025.pdf | 639 kB | Shaun Ewing | Jul 04, 1939 00:00 |
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US-2165025-A // Safety circuits for cathode ray tubes // Jr. Millard W. Baldwin, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Jul 04, 1939 00:00 | US-2165025-A // Safety circuits for cathode ray tubes // Jr. Millard W. Baldwin, // Bell Telephone Labor Inc | ||||
| PDF File 2206385.pdf | 639 kB | Shaun Ewing | Jul 02, 1940 00:00 |
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US-2206385-A // Telephone system // Allen Lawrence H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Jul 02, 1940 00:00 | US-2206385-A // Telephone system // Allen Lawrence H. // Bell Telephone Labor Inc | ||||
| PDF File 1919039.pdf | 639 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1919039-A // Switching device // Ritchie George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 639 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1919039-A // Switching device // Ritchie George A. // Bell Telephone Labor Inc | ||||
| PDF File 1953503.pdf | 638 kB | Shaun Ewing | Apr 03, 1934 00:00 |
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US-1953503-A // Crossbar switch // Reynolds John N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 638 kB | Shaun Ewing | Apr 03, 1934 00:00 | US-1953503-A // Crossbar switch // Reynolds John N. // Bell Telephone Labor Inc | ||||
| PDF File 2202467.pdf | 638 kB | Shaun Ewing | May 28, 1940 00:00 |
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US-2202467-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 638 kB | Shaun Ewing | May 28, 1940 00:00 | US-2202467-A // Artificial larynx // Riesz Robert R. // Bell Telephone Labor Inc | ||||
| PDF File 2212338.pdf | 638 kB | Shaun Ewing | Aug 20, 1940 00:00 |
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US-2212338-A // Frequency modulation // Bown Ralph // Bell Telephone Labor Inc | |||
| Version 1 (current) | 638 kB | Shaun Ewing | Aug 20, 1940 00:00 | US-2212338-A // Frequency modulation // Bown Ralph // Bell Telephone Labor Inc | ||||
| PDF File 2154921.pdf | 638 kB | Shaun Ewing | Apr 18, 1939 00:00 |
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US-2154921-A // Signaling system // Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 638 kB | Shaun Ewing | Apr 18, 1939 00:00 | US-2154921-A // Signaling system // Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2177256.pdf | 637 kB | Shaun Ewing | Oct 24, 1939 00:00 |
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US-2177256-A // Multichannel television system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Oct 24, 1939 00:00 | US-2177256-A // Multichannel television system // Ives Herbert E. // Bell Telephone Labor Inc |
