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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1829805.pdf | 2.39 MB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829805-A // Transmission control // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.39 MB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829805-A // Transmission control // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 2029683.pdf | 2.38 MB | Shaun Ewing | Feb 04, 1936 00:00 |
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US-2029683-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.38 MB | Shaun Ewing | Feb 04, 1936 00:00 | US-2029683-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1829806.pdf | 2.36 MB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829806-A // Transmission control // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.36 MB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829806-A // Transmission control // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 2149343.pdf | 2.36 MB | Shaun Ewing | Mar 07, 1939 00:00 |
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US-2149343-A // Signaling system // Hubbard Francis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.36 MB | Shaun Ewing | Mar 07, 1939 00:00 | US-2149343-A // Signaling system // Hubbard Francis A. // Bell Telephone Labor Inc | ||||
| PDF File 2041084.pdf | 2.35 MB | Shaun Ewing | May 19, 1936 00:00 |
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US-2041084-A // Telephone system // Myers Oscar // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.35 MB | Shaun Ewing | May 19, 1936 00:00 | US-2041084-A // Telephone system // Myers Oscar // Bell Telephone Labor Inc | ||||
| PDF File 2021291.pdf | 2.35 MB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021291-A // Telephone system // Clark Edgar H. ; Scudder Frederick J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.35 MB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021291-A // Telephone system // Clark Edgar H. ; Scudder Frederick J. // Bell Telephone Labor Inc | ||||
| PDF File 2121142.pdf | 2.34 MB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2121142-A // System for the artificial production of vocal or other sounds // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.34 MB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121142-A // System for the artificial production of vocal or other sounds // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2190668.pdf | 2.34 MB | Shaun Ewing | Feb 20, 1940 00:00 |
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US-2190668-A // Diode oscillator // Llewellyn Frederick B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.34 MB | Shaun Ewing | Feb 20, 1940 00:00 | US-2190668-A // Diode oscillator // Llewellyn Frederick B. // Bell Telephone Labor Inc | ||||
| PDF File 1844422.pdf | 2.34 MB | Shaun Ewing | Feb 09, 1932 00:00 |
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US-1844422-A // Cable telephony // Mathes Robert C. ; Jr. Arthur W. Horton, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.34 MB | Shaun Ewing | Feb 09, 1932 00:00 | US-1844422-A // Cable telephony // Mathes Robert C. ; Jr. Arthur W. Horton, // Bell Telephone Labor Inc | ||||
| PDF File 1799654.pdf | 2.33 MB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799654-A // Telephone-exchange system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.33 MB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799654-A // Telephone-exchange system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1853022.pdf | 2.31 MB | Shaun Ewing | Apr 12, 1932 00:00 |
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US-1853022-A // Automatic dialing circuits // Allison Sewell W. ; Mccullagh Willis I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.31 MB | Shaun Ewing | Apr 12, 1932 00:00 | US-1853022-A // Automatic dialing circuits // Allison Sewell W. ; Mccullagh Willis I. // Bell Telephone Labor Inc | ||||
| PDF File 2042561.pdf | 2.30 MB | Shaun Ewing | Jun 02, 1936 00:00 |
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US-2042561-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.30 MB | Shaun Ewing | Jun 02, 1936 00:00 | US-2042561-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 2101254.pdf | 2.29 MB | Shaun Ewing | Dec 07, 1937 00:00 |
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US-2101254-A // Testing circuit // Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.29 MB | Shaun Ewing | Dec 07, 1937 00:00 | US-2101254-A // Testing circuit // Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1866593.pdf | 2.29 MB | Shaun Ewing | Jul 12, 1932 00:00 |
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US-1866593-A // Call distributing system // Dahl Jack F. ; Carpenter Warren W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.29 MB | Shaun Ewing | Jul 12, 1932 00:00 | US-1866593-A // Call distributing system // Dahl Jack F. ; Carpenter Warren W. // Bell Telephone Labor Inc | ||||
| PDF File 2195081.pdf | 2.28 MB | Shaun Ewing | Mar 26, 1940 00:00 |
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US-2195081-A // Sound printing mechanism // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.28 MB | Shaun Ewing | Mar 26, 1940 00:00 | US-2195081-A // Sound printing mechanism // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2099143.pdf | 2.27 MB | Shaun Ewing | Nov 16, 1937 00:00 |
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US-2099143-A // Call transmitter device // Roberts John G. ; Richard Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.27 MB | Shaun Ewing | Nov 16, 1937 00:00 | US-2099143-A // Call transmitter device // Roberts John G. ; Richard Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 2030400.pdf | 2.25 MB | Shaun Ewing | Feb 11, 1936 00:00 |
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US-2030400-A // Control circuit // Rosene Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.25 MB | Shaun Ewing | Feb 11, 1936 00:00 | US-2030400-A // Control circuit // Rosene Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 2060843.pdf | 2.21 MB | Shaun Ewing | Nov 17, 1936 00:00 |
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US-2060843-A // Transmission system // Abraham Leonard G. ; Grenell Arthur F. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.21 MB | Shaun Ewing | Nov 17, 1936 00:00 | US-2060843-A // Transmission system // Abraham Leonard G. ; Grenell Arthur F. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2185287.pdf | 2.21 MB | Shaun Ewing | Jan 02, 1940 00:00 |
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US-2185287-A // Telephone system // Beaumont William M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.21 MB | Shaun Ewing | Jan 02, 1940 00:00 | US-2185287-A // Telephone system // Beaumont William M. // Bell Telephone Labor Inc | ||||
| PDF File 1832306.pdf | 2.20 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832306-A // Semiautomatic telephone system // Kille Lindley A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.20 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832306-A // Semiautomatic telephone system // Kille Lindley A. // Bell Telephone Labor Inc |
