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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1795474.pdf | 566 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795474-A // Nonsinging amplifier // Ceccarini Olindo O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 566 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795474-A // Nonsinging amplifier // Ceccarini Olindo O. // Bell Telephone Labor Inc | ||||
| PDF File 1795479.pdf | 374 kB | Shaun Ewing | Mar 10, 1931 00:00 |
|
US-1795479-A // Wave-transmission system // Dickieson Alton C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 374 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795479-A // Wave-transmission system // Dickieson Alton C. // Bell Telephone Labor Inc | ||||
| PDF File 1795498.pdf | 425 kB | Shaun Ewing | Mar 10, 1931 00:00 |
|
US-1795498-A // Electromagnetic device // Mathison David W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795498-A // Electromagnetic device // Mathison David W. // Bell Telephone Labor Inc | ||||
| PDF File 1795499.pdf | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 |
|
US-1795499-A // Magnetic device // Miller Daniel D. ; Pratt Edward J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795499-A // Magnetic device // Miller Daniel D. ; Pratt Edward J. // Bell Telephone Labor Inc | ||||
| PDF File 1795640.pdf | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795640-A // Telephone-exchange system // Collis Raymond E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 809 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795640-A // Telephone-exchange system // Collis Raymond E. // Bell Telephone Labor Inc | ||||
| PDF File 1795647.pdf | 889 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795647-A // Method and apparatus for measuring acoustical impedances // Flanders Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 889 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795647-A // Method and apparatus for measuring acoustical impedances // Flanders Paul B. // Bell Telephone Labor Inc | ||||
| PDF File 1795648.pdf | 341 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795648-A // High-frequency-oscillation generator // Frils Harald T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 341 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795648-A // High-frequency-oscillation generator // Frils Harald T. // Bell Telephone Labor Inc | ||||
| PDF File 1795652.pdf | 720 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795652-A // Telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 720 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795652-A // Telegraph system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 1795656.pdf | 459 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795656-A // Service-observing system // Massonneau Robert F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795656-A // Service-observing system // Massonneau Robert F. // Bell Telephone Labor Inc | ||||
| PDF File 1795813.pdf | 1.97 MB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795813-A // Telephone system // Whitney Wiley // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.97 MB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795813-A // Telephone system // Whitney Wiley // Bell Telephone Labor Inc | ||||
| PDF File 1795834.pdf | 203 kB | Shaun Ewing | Mar 10, 1931 00:00 |
|
US-1795834-A // Testing system // Cesareo Orfeo // Bell Telephone Labor Inc | |||
| Version 1 (current) | 203 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795834-A // Testing system // Cesareo Orfeo // Bell Telephone Labor Inc | ||||
| PDF File 1795874.pdf | 954 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795874-A // Impedance element // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 954 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795874-A // Impedance element // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 1795914.pdf | 700 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795914-A // Amplifying system // Whittle Horace ; Christopher Arthur J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 700 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795914-A // Amplifying system // Whittle Horace ; Christopher Arthur J. // Bell Telephone Labor Inc | ||||
| PDF File 1795924.pdf | 679 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795924-A // Relay circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 679 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795924-A // Relay circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 1796931.pdf | 1.20 MB | Shaun Ewing | Mar 17, 1931 00:00 |
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US-1796931-A // Electrooptical transmission // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | Mar 17, 1931 00:00 | US-1796931-A // Electrooptical transmission // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1796965.pdf | 1.08 MB | Shaun Ewing | Mar 17, 1931 00:00 |
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US-1796965-A // Method of and means for signaling // Ryan Francis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Mar 17, 1931 00:00 | US-1796965-A // Method of and means for signaling // Ryan Francis M. // Bell Telephone Labor Inc | ||||
| PDF File 1798243.pdf | 1.39 MB | Shaun Ewing | Mar 31, 1931 00:00 |
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US-1798243-A // Electrical transmission system // Whittle Horace ; Hilton Linwood B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.39 MB | Shaun Ewing | Mar 31, 1931 00:00 | US-1798243-A // Electrical transmission system // Whittle Horace ; Hilton Linwood B. // Bell Telephone Labor Inc | ||||
| PDF File 1799214.pdf | 3.49 MB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799214-A // Submarine telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.49 MB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799214-A // Submarine telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | ||||
| PDF File 1799223.pdf | 548 kB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799223-A // Party-line message-register system // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799223-A // Party-line message-register system // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 1799627.pdf | 1.71 MB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799627-A // Signal-interpolating system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.71 MB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799627-A // Signal-interpolating system // Knoop William A. // Bell Telephone Labor Inc |
