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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2508026.pdf | 941 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2508026-A // Calling-line identification system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 941 kB | Shaun Ewing | May 16, 1950 00:00 | US-2508026-A // Calling-line identification system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2507746.pdf | 497 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2507746-A // Pulse-reflection distance measuring system // Wright Henry O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 497 kB | Shaun Ewing | May 16, 1950 00:00 | US-2507746-A // Pulse-reflection distance measuring system // Wright Henry O. // Bell Telephone Labor Inc | ||||
| PDF File 2507712.pdf | 455 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2507712-A // Coupling between balanced and unbalanced circuits // Harrison Arthur E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 455 kB | Shaun Ewing | May 16, 1950 00:00 | US-2507712-A // Coupling between balanced and unbalanced circuits // Harrison Arthur E. // Bell Telephone Labor Inc | ||||
| PDF File 2507709.pdf | 742 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2507709-A // Grid electrode and method of manufacture // Gronros Warren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 742 kB | Shaun Ewing | May 16, 1950 00:00 | US-2507709-A // Grid electrode and method of manufacture // Gronros Warren // Bell Telephone Labor Inc | ||||
| PDF File 2507706.pdf | 875 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2507706-A // Electronic discharge device // Gee Richard C. ; Gronros Warren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 875 kB | Shaun Ewing | May 16, 1950 00:00 | US-2507706-A // Electronic discharge device // Gee Richard C. ; Gronros Warren // Bell Telephone Labor Inc | ||||
| PDF File 2507696.pdf | 805 kB | Shaun Ewing | May 16, 1950 00:00 |
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US-2507696-A // Glow discharge device // Depp Wallace A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 805 kB | Shaun Ewing | May 16, 1950 00:00 | US-2507696-A // Glow discharge device // Depp Wallace A. // Bell Telephone Labor Inc | ||||
| PDF File 2507116.pdf | 1.58 MB | Shaun Ewing | May 09, 1950 00:00 |
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US-2507116-A // Power line carrier telephone system // Moore Hilbert R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.58 MB | Shaun Ewing | May 09, 1950 00:00 | US-2507116-A // Power line carrier telephone system // Moore Hilbert R. // Bell Telephone Labor Inc | ||||
| PDF File 2506955.pdf | 449 kB | Shaun Ewing | May 09, 1950 00:00 |
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US-2506955-A // Tunable high-frequency circuits // Fracassi Renato D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 449 kB | Shaun Ewing | May 09, 1950 00:00 | US-2506955-A // Tunable high-frequency circuits // Fracassi Renato D. // Bell Telephone Labor Inc | ||||
| PDF File 2506949.pdf | 5.19 MB | Shaun Ewing | May 09, 1950 00:00 |
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US-2506949-A // Ground trainer for training aircraft crew members // Burelbach Frederick M. ; Lukacs Joseph J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 5.19 MB | Shaun Ewing | May 09, 1950 00:00 | US-2506949-A // Ground trainer for training aircraft crew members // Burelbach Frederick M. ; Lukacs Joseph J. // Bell Telephone Labor Inc | ||||
| PDF File 2506624.pdf | 593 kB | Shaun Ewing | May 09, 1950 00:00 |
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US-2506624-A // Electroacoustic transducer // Wirsching Robert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 593 kB | Shaun Ewing | May 09, 1950 00:00 | US-2506624-A // Electroacoustic transducer // Wirsching Robert E. // Bell Telephone Labor Inc | ||||
| PDF File 2506609.pdf | 424 kB | Shaun Ewing | May 09, 1950 00:00 |
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US-2506609-A // Ring armature telephone receiver // Mott Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 424 kB | Shaun Ewing | May 09, 1950 00:00 | US-2506609-A // Ring armature telephone receiver // Mott Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 2506437.pdf | 1.87 MB | Shaun Ewing | May 02, 1950 00:00 |
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US-2506437-A // Combined voice and facsimile system // Watson Edward F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.87 MB | Shaun Ewing | May 02, 1950 00:00 | US-2506437-A // Combined voice and facsimile system // Watson Edward F. // Bell Telephone Labor Inc | ||||
| PDF File 2506429.pdf | 911 kB | Shaun Ewing | May 02, 1950 00:00 |
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US-2506429-A // Selective signaling system // Melick John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 911 kB | Shaun Ewing | May 02, 1950 00:00 | US-2506429-A // Selective signaling system // Melick John M. // Bell Telephone Labor Inc | ||||
| PDF File 2506420.pdf | 477 kB | Shaun Ewing | May 02, 1950 00:00 |
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US-2506420-A // Cobalt base alloys and resistance elements formed therefrom // Greiner Earl S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 477 kB | Shaun Ewing | May 02, 1950 00:00 | US-2506420-A // Cobalt base alloys and resistance elements formed therefrom // Greiner Earl S. // Bell Telephone Labor Inc | ||||
| PDF File 2506418.pdf | 678 kB | Shaun Ewing | May 02, 1950 00:00 |
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US-2506418-A // Junction for coupling a plurality of wave guide sections // Gilmer Peter E. ; Samek Charles T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | May 02, 1950 00:00 | US-2506418-A // Junction for coupling a plurality of wave guide sections // Gilmer Peter E. ; Samek Charles T. // Bell Telephone Labor Inc | ||||
| PDF File 2506414.pdf | 553 kB | Shaun Ewing | May 02, 1950 00:00 |
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US-2506414-A // Sealed wire contact device // Ellwood Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 553 kB | Shaun Ewing | May 02, 1950 00:00 | US-2506414-A // Sealed wire contact device // Ellwood Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 2505566.pdf | 692 kB | Shaun Ewing | Apr 25, 1950 00:00 |
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US-2505566-A // Signaling system // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 692 kB | Shaun Ewing | Apr 25, 1950 00:00 | US-2505566-A // Signaling system // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 2505550.pdf | 780 kB | Shaun Ewing | Apr 25, 1950 00:00 |
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US-2505550-A // Automatic volume control circuits // Ketchiedge Raymond W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 780 kB | Shaun Ewing | Apr 25, 1950 00:00 | US-2505550-A // Automatic volume control circuits // Ketchiedge Raymond W. // Bell Telephone Labor Inc | ||||
| PDF File 2505370.pdf | 583 kB | Shaun Ewing | Apr 25, 1950 00:00 |
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US-2505370-A // Piezoelectric crystal unit // Sykes Roger A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 583 kB | Shaun Ewing | Apr 25, 1950 00:00 | US-2505370-A // Piezoelectric crystal unit // Sykes Roger A. // Bell Telephone Labor Inc | ||||
| PDF File 2505364.pdf | 1.11 MB | Shaun Ewing | Apr 25, 1950 00:00 |
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US-2505364-A // Compression wave transmission // Mcskimin Herbert J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.11 MB | Shaun Ewing | Apr 25, 1950 00:00 | US-2505364-A // Compression wave transmission // Mcskimin Herbert J. // Bell Telephone Labor Inc |
