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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2619545.pdf | 1.54 MB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619545-A // Telephone calling line identification and recording system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.54 MB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619545-A // Telephone calling line identification and recording system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2619543.pdf | 1.02 MB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619543-A // Frequency changing pulse repeater employing phase modulation // Cutler Cassius C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619543-A // Frequency changing pulse repeater employing phase modulation // Cutler Cassius C. // Bell Telephone Labor Inc | ||||
| PDF File 2619528.pdf | 1.06 MB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619528-A // Selective signaling system // Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619528-A // Selective signaling system // Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2619518.pdf | 392 kB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619518-A // Cable terminal // Kelsay Le Roy W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 392 kB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619518-A // Cable terminal // Kelsay Le Roy W. // Bell Telephone Labor Inc | ||||
| PDF File 2619414.pdf | 598 kB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619414-A // Surface treatment of germanium circuit elements // Heidenreich Robert D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 598 kB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619414-A // Surface treatment of germanium circuit elements // Heidenreich Robert D. // Bell Telephone Labor Inc | ||||
| PDF File 2619178.pdf | 1.48 MB | Shaun Ewing | Nov 25, 1952 00:00 |
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US-2619178-A // Precautionary circuit // Eppel Simeon L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.48 MB | Shaun Ewing | Nov 25, 1952 00:00 | US-2619178-A // Precautionary circuit // Eppel Simeon L. // Bell Telephone Labor Inc | ||||
| PDF File 2618767.pdf | 683 kB | Shaun Ewing | Nov 18, 1952 00:00 |
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US-2618767-A // Multicathode gaseous discharge device // Gugelberg Hans L. Von // Bell Telephone Labor Inc | |||
| Version 1 (current) | 683 kB | Shaun Ewing | Nov 18, 1952 00:00 | US-2618767-A // Multicathode gaseous discharge device // Gugelberg Hans L. Von // Bell Telephone Labor Inc | ||||
| PDF File 2618686.pdf | 1.01 MB | Shaun Ewing | Nov 18, 1952 00:00 |
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US-2618686-A // Distortion indicator // Lange Owen E. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.01 MB | Shaun Ewing | Nov 18, 1952 00:00 | US-2618686-A // Distortion indicator // Lange Owen E. De // Bell Telephone Labor Inc | ||||
| PDF File 2617981.pdf | 664 kB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617981-A // Coder for pulse code modulation systems // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 664 kB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617981-A // Coder for pulse code modulation systems // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2617980.pdf | 1.12 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617980-A // Coder for pulse code modulation systems // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617980-A // Coder for pulse code modulation systems // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 2617959.pdf | 1.09 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617959-A // Electron discharge device // Fay Clifford E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617959-A // Electron discharge device // Fay Clifford E. // Bell Telephone Labor Inc | ||||
| PDF File 2617885.pdf | 870 kB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617885-A // Frequency changing regenerative pulse repeater // Cutler Cassius C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 870 kB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617885-A // Frequency changing regenerative pulse repeater // Cutler Cassius C. // Bell Telephone Labor Inc | ||||
| PDF File 2617881.pdf | 814 kB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617881-A // Pseudohybrid microwave filter // Lewis Willard D. ; Pierce John R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617881-A // Pseudohybrid microwave filter // Lewis Willard D. ; Pierce John R. // Bell Telephone Labor Inc | ||||
| PDF File 2617865.pdf | 1.96 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617865-A // Semiconductor amplifier and electrode structures therefor // Bardeen John ; Brattain Walter H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.96 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617865-A // Semiconductor amplifier and electrode structures therefor // Bardeen John ; Brattain Walter H. // Bell Telephone Labor Inc | ||||
| PDF File 2617855.pdf | 1.07 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617855-A // Automatic measurement of transmission characteristics // Jr. Harry A. Etheridge, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617855-A // Automatic measurement of transmission characteristics // Jr. Harry A. Etheridge, // Bell Telephone Labor Inc | ||||
| PDF File 2617853.pdf | 1.46 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617853-A // Method of and system for measuring impedance mismatch // Gilmer Peter E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.46 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617853-A // Method of and system for measuring impedance mismatch // Gilmer Peter E. // Bell Telephone Labor Inc | ||||
| PDF File 2617843.pdf | 1.41 MB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617843-A // Apparatus for power measurements at high frequencies // Houghton Edward W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.41 MB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617843-A // Apparatus for power measurements at high frequencies // Houghton Edward W. // Bell Telephone Labor Inc | ||||
| PDF File 2617289.pdf | 687 kB | Shaun Ewing | Nov 11, 1952 00:00 |
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US-2617289-A // Key actuated double custody lock // Shann Oscar A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 687 kB | Shaun Ewing | Nov 11, 1952 00:00 | US-2617289-A // Key actuated double custody lock // Shann Oscar A. // Bell Telephone Labor Inc | ||||
| PDF File 2617094.pdf | 1.28 MB | Shaun Ewing | Nov 04, 1952 00:00 |
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US-2617094-A // Object location system // Tinus William C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Nov 04, 1952 00:00 | US-2617094-A // Object location system // Tinus William C. // Bell Telephone Labor Inc | ||||
| PDF File 2617087.pdf | 1.92 MB | Shaun Ewing | Nov 04, 1952 00:00 |
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US-2617087-A // Current supply apparatus // Meszaros George W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.92 MB | Shaun Ewing | Nov 04, 1952 00:00 | US-2617087-A // Current supply apparatus // Meszaros George W. // Bell Telephone Labor Inc |
