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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2128442.pdf | 1.48 MB | Shaun Ewing | Aug 30, 1938 00:00 |
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US-2128442-A // Prepayment telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.48 MB | Shaun Ewing | Aug 30, 1938 00:00 | US-2128442-A // Prepayment telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | ||||
| PDF File 2115138.pdf | 1.47 MB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115138-A // Wave transmission network // Darlington Sidney // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115138-A // Wave transmission network // Darlington Sidney // Bell Telephone Labor Inc | ||||
| PDF File 1848180.pdf | 1.47 MB | Shaun Ewing | Mar 08, 1932 00:00 |
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US-1848180-A // Synchronizing system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Mar 08, 1932 00:00 | US-1848180-A // Synchronizing system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 2155035.pdf | 1.46 MB | Shaun Ewing | Apr 18, 1939 00:00 |
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US-2155035-A // Piezoelectric crystal apparatus // Bieling Carl A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.46 MB | Shaun Ewing | Apr 18, 1939 00:00 | US-2155035-A // Piezoelectric crystal apparatus // Bieling Carl A. // Bell Telephone Labor Inc | ||||
| PDF File 1818463.pdf | 1.46 MB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818463-A // Zero correcting circuit // Curtis Austen M. ; Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.46 MB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818463-A // Zero correcting circuit // Curtis Austen M. ; Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 1799653.pdf | 1.46 MB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799653-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.46 MB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799653-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1899410.pdf | 1.45 MB | Shaun Ewing | Feb 28, 1933 00:00 |
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US-1899410-A // Directive antenna system // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.45 MB | Shaun Ewing | Feb 28, 1933 00:00 | US-1899410-A // Directive antenna system // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 2088750.pdf | 1.45 MB | Shaun Ewing | Aug 03, 1937 00:00 |
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US-2088750-A // Answer-back device for machine switching printing telegraph exchange systems // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.45 MB | Shaun Ewing | Aug 03, 1937 00:00 | US-2088750-A // Answer-back device for machine switching printing telegraph exchange systems // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 2060222.pdf | 1.44 MB | Shaun Ewing | Nov 10, 1936 00:00 |
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US-2060222-A // Interpolating system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Nov 10, 1936 00:00 | US-2060222-A // Interpolating system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1852746.pdf | 1.44 MB | Shaun Ewing | Apr 05, 1932 00:00 |
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US-1852746-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Apr 05, 1932 00:00 | US-1852746-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 2207720.pdf | 1.44 MB | Shaun Ewing | Jul 16, 1940 00:00 |
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US-2207720-A // Communication system // Cole Ira E. ; Melhose Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Jul 16, 1940 00:00 | US-2207720-A // Communication system // Cole Ira E. ; Melhose Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 2156088.pdf | 1.44 MB | Shaun Ewing | Apr 25, 1939 00:00 |
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US-2156088-A // Multielement electron discharge apparatus and system // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Apr 25, 1939 00:00 | US-2156088-A // Multielement electron discharge apparatus and system // Heising Raymond A. // Bell Telephone Labor Inc | ||||
| PDF File 1804169.pdf | 1.43 MB | Shaun Ewing | May 05, 1931 00:00 |
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US-1804169-A // Telephone exchange system // Knowlton Alfred D. ; Everett Samuel H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.43 MB | Shaun Ewing | May 05, 1931 00:00 | US-1804169-A // Telephone exchange system // Knowlton Alfred D. ; Everett Samuel H. // Bell Telephone Labor Inc | ||||
| PDF File 1941116.pdf | 1.43 MB | Shaun Ewing | Dec 26, 1933 00:00 |
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US-1941116-A // Communication system // Strieby Maurice E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.43 MB | Shaun Ewing | Dec 26, 1933 00:00 | US-1941116-A // Communication system // Strieby Maurice E. // Bell Telephone Labor Inc | ||||
| PDF File 2086601.pdf | 1.43 MB | Shaun Ewing | Jul 13, 1937 00:00 |
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US-2086601-A // Modulating system // Caruthers Robert S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.43 MB | Shaun Ewing | Jul 13, 1937 00:00 | US-2086601-A // Modulating system // Caruthers Robert S. // Bell Telephone Labor Inc | ||||
| PDF File 2164383.pdf | 1.43 MB | Shaun Ewing | Jul 04, 1939 00:00 |
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US-2164383-A // Magnetic device // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.43 MB | Shaun Ewing | Jul 04, 1939 00:00 | US-2164383-A // Magnetic device // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 2061555.pdf | 1.42 MB | Shaun Ewing | Nov 24, 1936 00:00 |
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US-2061555-A // Transmission control in two-way signaling systems // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.42 MB | Shaun Ewing | Nov 24, 1936 00:00 | US-2061555-A // Transmission control in two-way signaling systems // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2115145.pdf | 1.42 MB | Shaun Ewing | Apr 26, 1938 00:00 |
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US-2115145-A // Piezoelectric crystal holder // Koerner Lawrence F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.42 MB | Shaun Ewing | Apr 26, 1938 00:00 | US-2115145-A // Piezoelectric crystal holder // Koerner Lawrence F. // Bell Telephone Labor Inc | ||||
| PDF File 2138580.pdf | 1.41 MB | Shaun Ewing | Nov 29, 1938 00:00 |
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US-2138580-A // Printing telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.41 MB | Shaun Ewing | Nov 29, 1938 00:00 | US-2138580-A // Printing telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 1823688.pdf | 1.41 MB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823688-A // Telephone exchange system // Hovland Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.41 MB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823688-A // Telephone exchange system // Hovland Henry // Bell Telephone Labor Inc |
