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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1831377.pdf | 190 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1831377-A // Telephone receiver // Blount Nelson // Bell Telephone Labor Inc | |||
| Version 1 (current) | 190 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831377-A // Telephone receiver // Blount Nelson // Bell Telephone Labor Inc | ||||
| PDF File 1831380.pdf | 1.37 MB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1831380-A // Telephone system // Curley Thomas V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.37 MB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831380-A // Telephone system // Curley Thomas V. // Bell Telephone Labor Inc | ||||
| PDF File 1831385.pdf | 790 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1831385-A // Telephone system // Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 790 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831385-A // Telephone system // Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1831391.pdf | 796 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1831391-A // Telephone desk set // Perreault George E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831391-A // Telephone desk set // Perreault George E. // Bell Telephone Labor Inc | ||||
| PDF File 1831398.pdf | 684 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1831398-A // Telephone system // Spencer Charles G. ; Hall John A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 684 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831398-A // Telephone system // Spencer Charles G. ; Hall John A. // Bell Telephone Labor Inc | ||||
| PDF File 1831400.pdf | 911 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1831400-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 911 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831400-A // Telephone system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1832261.pdf | 699 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832261-A // Non-singing amplifier // Stevenson George H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 699 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832261-A // Non-singing amplifier // Stevenson George H. // Bell Telephone Labor Inc | ||||
| PDF File 1832263.pdf | 1.09 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832263-A // Telephone system // Strickler Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832263-A // Telephone system // Strickler Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 1832285.pdf | 292 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832285-A // Mechanical coupling // Elmer Lloyd A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 292 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832285-A // Mechanical coupling // Elmer Lloyd A. // Bell Telephone Labor Inc | ||||
| PDF File 1832292.pdf | 212 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832292-A // Electrical circuits // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 212 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832292-A // Electrical circuits // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 1832293.pdf | 320 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832293-A // Protective device // Jr. George Friedl, ; Gastonguay Antonio // Electrical Res Prod Inc ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832293-A // Protective device // Jr. George Friedl, ; Gastonguay Antonio // Electrical Res Prod Inc ; Bell Telephone Labor Inc | ||||
| PDF File 1832294.pdf | 418 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832294-A // Sensitometer // Gent Edgar W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 418 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832294-A // Sensitometer // Gent Edgar W. // 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 | ||||
| PDF File 1832308.pdf | 1.51 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832308-A // Interpolating system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832308-A // Interpolating system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1832309.pdf | 878 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832309-A // Synchronous telegraph system // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 878 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832309-A // Synchronous telegraph system // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1832366.pdf | 1.91 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832366-A // Electrical communication system // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.91 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832366-A // Electrical communication system // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 1832431.pdf | 1.18 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832431-A // Electric wave transmission system // Sivian Leon J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832431-A // Electric wave transmission system // Sivian Leon J. // Bell Telephone Labor Inc | ||||
| PDF File 1832447.pdf | 2.59 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832447-A // Telephone system // Carpenter Warren W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.59 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832447-A // Telephone system // Carpenter Warren W. // Bell Telephone Labor Inc | ||||
| PDF File 1832453.pdf | 519 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832453-A // Telephone metering system // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 519 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832453-A // Telephone metering system // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 1832455.pdf | 389 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832455-A // Submarine signaling conductor // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832455-A // Submarine signaling conductor // Gilbert John J. // Bell Telephone Labor Inc |
