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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2230352.pdf | 466 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230352-A // Coin chute // Hoyt Frederick A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 466 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230352-A // Coin chute // Hoyt Frederick A. // Bell Telephone Labor Inc | ||||
| PDF File 2230357.pdf | 774 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230357-A // Telephone system // Logan Mason A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 774 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230357-A // Telephone system // Logan Mason A. // Bell Telephone Labor Inc | ||||
| PDF File 2230360.pdf | 543 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230360-A // Multiway telephone circuit // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 543 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230360-A // Multiway telephone circuit // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 2230364.pdf | 401 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230364-A // Inductance device // Peterson Glen // Bell Telephone Labor Inc | |||
| Version 1 (current) | 401 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230364-A // Inductance device // Peterson Glen // Bell Telephone Labor Inc | ||||
| PDF File 2230558.pdf | 829 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230558-A // Electron discharge apparatus // Bowen Arnold E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 829 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230558-A // Electron discharge apparatus // Bowen Arnold E. // Bell Telephone Labor Inc | ||||
| PDF File 2230562.pdf | 870 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230562-A // Signaling system // Dimond Thomas L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 870 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230562-A // Signaling system // Dimond Thomas L. // Bell Telephone Labor Inc | ||||
| PDF File 2230649.pdf | 533 kB | Shaun Ewing | Feb 04, 1941 00:00 |
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US-2230649-A // Variable electric capacity device // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Feb 04, 1941 00:00 | US-2230649-A // Variable electric capacity device // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2231084.pdf | 1.35 MB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231084-A // Acoustic device // Morrison Louis A. ; Mott Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231084-A // Acoustic device // Morrison Louis A. ; Mott Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 2231085.pdf | 747 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231085-A // Method and apparatus for measuring force factors // Morrison Louis A. ; Mott Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 747 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231085-A // Method and apparatus for measuring force factors // Morrison Louis A. ; Mott Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 2231365.pdf | 581 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231365-A // Switching device // Matthews Emil C. ; Ritchie George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 581 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231365-A // Switching device // Matthews Emil C. ; Ritchie George A. // Bell Telephone Labor Inc | ||||
| PDF File 2231374.pdf | 496 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231374-A // Negative feedback amplifier // Stillwell Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231374-A // Negative feedback amplifier // Stillwell Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 2231375.pdf | 1.12 MB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231375-A // Multiplex telegraph system // Watson Edward F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231375-A // Multiplex telegraph system // Watson Edward F. // Bell Telephone Labor Inc | ||||
| PDF File 2231404.pdf | 2.86 MB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231404-A // Electromechanical wave filter // Blackman Ralph B. ; Lakatos Emory // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.86 MB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231404-A // Electromechanical wave filter // Blackman Ralph B. ; Lakatos Emory // Bell Telephone Labor Inc | ||||
| PDF File 2231527.pdf | 910 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231527-A // Transmission regulation // Chesnut Roy W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 910 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231527-A // Transmission regulation // Chesnut Roy W. // Bell Telephone Labor Inc | ||||
| PDF File 2231538.pdf | 1.15 MB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231538-A // Transmission control // Jr. John G. Kreer, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.15 MB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231538-A // Transmission control // Jr. John G. Kreer, // Bell Telephone Labor Inc | ||||
| PDF File 2231542.pdf | 880 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231542-A // Transmission control circuit // Mallinckrodt Charles O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 880 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231542-A // Transmission control circuit // Mallinckrodt Charles O. // Bell Telephone Labor Inc | ||||
| PDF File 2231558.pdf | 1.05 MB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231558-A // Signal transmission // Bollman John H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.05 MB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231558-A // Signal transmission // Bollman John H. // Bell Telephone Labor Inc | ||||
| PDF File 2231634.pdf | 700 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231634-A // Variable frequency wave producing means // Monk Newton // Bell Telephone Labor Inc | |||
| Version 1 (current) | 700 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231634-A // Variable frequency wave producing means // Monk Newton // Bell Telephone Labor Inc | ||||
| PDF File 2231636.pdf | 860 kB | Shaun Ewing | Feb 11, 1941 00:00 |
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US-2231636-A // Radio receiver control system // Pruden Harold M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 860 kB | Shaun Ewing | Feb 11, 1941 00:00 | US-2231636-A // Radio receiver control system // Pruden Harold M. // Bell Telephone Labor Inc | ||||
| PDF File 2231919.pdf | 562 kB | Shaun Ewing | Feb 18, 1941 00:00 |
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US-2231919-A // Grappling device // Kent Robert J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 562 kB | Shaun Ewing | Feb 18, 1941 00:00 | US-2231919-A // Grappling device // Kent Robert J. // Bell Telephone Labor Inc |
