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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2019484.pdf | 551 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019484-A // Electron discharge device // Clark James E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 551 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019484-A // Electron discharge device // Clark James E. // Bell Telephone Labor Inc | ||||
| PDF File 2019492.pdf | 525 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019492-A // Electron discharge device // Hale Douglas A. S. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 525 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019492-A // Electron discharge device // Hale Douglas A. S. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2019504.pdf | 674 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019504-A // Activation process for electron emitters // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 674 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019504-A // Activation process for electron emitters // Jr. Charles H. Prescott, // Bell Telephone Labor Inc | ||||
| PDF File 2019594.pdf | 829 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019594-A // Signal transmission system // Black Knox C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 829 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019594-A // Signal transmission system // Black Knox C. // Bell Telephone Labor Inc | ||||
| PDF File 2019597.pdf | 401 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019597-A // Repeater // Dowd Andrew D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 401 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019597-A // Repeater // Dowd Andrew D. // Bell Telephone Labor Inc | ||||
| PDF File 2019601.pdf | 309 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019601-A // Telephone substation apparatus // Evans William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019601-A // Telephone substation apparatus // Evans William A. // Bell Telephone Labor Inc | ||||
| PDF File 2019603.pdf | 278 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019603-A // Interconnection of transmission lines // Green Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 278 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019603-A // Interconnection of transmission lines // Green Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 2019624.pdf | 569 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019624-A // Attenuation equalizer // Norton Edward L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019624-A // Attenuation equalizer // Norton Edward L. // Bell Telephone Labor Inc | ||||
| PDF File 2019637.pdf | 678 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019637-A // Volume control circuit // Shelleng John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019637-A // Volume control circuit // Shelleng John C. // Bell Telephone Labor Inc | ||||
| PDF File 2019638.pdf | 1.21 MB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019638-A // Clutch and brake mechanism // Stoller Hugh M. ; Morton Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019638-A // Clutch and brake mechanism // Stoller Hugh M. ; Morton Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 2020297.pdf | 1.77 MB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020297-A // Submarine cable transmission // Buckley Oliver E. ; Jacobs Oliver B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.77 MB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020297-A // Submarine cable transmission // Buckley Oliver E. ; Jacobs Oliver B. // Bell Telephone Labor Inc | ||||
| PDF File 2020316.pdf | 928 kB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020316-A // Submarine cable system // Jacobs Oliver B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 928 kB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020316-A // Submarine cable system // Jacobs Oliver B. // Bell Telephone Labor Inc | ||||
| PDF File 2020317.pdf | 1.33 MB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020317-A // Transmission and repeater system // Jacobs Oliver B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020317-A // Transmission and repeater system // Jacobs Oliver B. // Bell Telephone Labor Inc | ||||
| PDF File 2020318.pdf | 1019 kB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020318-A // System including repeater // Jacobs Oliver B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1019 kB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020318-A // System including repeater // Jacobs Oliver B. // Bell Telephone Labor Inc | ||||
| PDF File 2020452.pdf | 1.22 MB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020452-A // Transmission control in signaling systems // Barney Harold L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020452-A // Transmission control in signaling systems // Barney Harold L. // Bell Telephone Labor Inc | ||||
| PDF File 2020458.pdf | 4.80 MB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020458-A // Telephone system // Dahl Jack F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.80 MB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020458-A // Telephone system // Dahl Jack F. // Bell Telephone Labor Inc | ||||
| PDF File 2020487.pdf | 796 kB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020487-A // Electrical signaling // Wadsworth Paul W. ; Taylor Charles C. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020487-A // Electrical signaling // Wadsworth Paul W. ; Taylor Charles C. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2020488.pdf | 287 kB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020488-A // Telephone system // Walsh John G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 287 kB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020488-A // Telephone system // Walsh John G. // Bell Telephone Labor Inc | ||||
| PDF File 2020875.pdf | 1.80 MB | Shaun Ewing | Nov 12, 1935 00:00 |
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US-2020875-A // Energization and control of amplifiers // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.80 MB | Shaun Ewing | Nov 12, 1935 00:00 | US-2020875-A // Energization and control of amplifiers // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 2021276.pdf | 262 kB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021276-A // Spring winding machine // Weinhart Howard W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 262 kB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021276-A // Spring winding machine // Weinhart Howard W. // Bell Telephone Labor Inc |
