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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2269639.pdf | 617 kB | Shaun Ewing | Jan 13, 1942 00:00 |
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US-2269639-A // Pulse regenerator // Jr. Karl D. Swartzel, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 617 kB | Shaun Ewing | Jan 13, 1942 00:00 | US-2269639-A // Pulse regenerator // Jr. Karl D. Swartzel, // Bell Telephone Labor Inc | ||||
| PDF File 2269603.pdf | 625 kB | Shaun Ewing | Jan 13, 1942 00:00 |
|
US-2269603-A // Measuring device // Jr. George H. Rockwood, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 625 kB | Shaun Ewing | Jan 13, 1942 00:00 | US-2269603-A // Measuring device // Jr. George H. Rockwood, // Bell Telephone Labor Inc | ||||
| PDF File 2269565.pdf | 1.87 MB | Shaun Ewing | Jan 13, 1942 00:00 |
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US-2269565-A // Communication system // Tillman Richard J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.87 MB | Shaun Ewing | Jan 13, 1942 00:00 | US-2269565-A // Communication system // Tillman Richard J. // Bell Telephone Labor Inc | ||||
| PDF File 2269462.pdf | 1.25 MB | Shaun Ewing | Jan 13, 1942 00:00 |
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US-2269462-A // Telephone system // Lewis Benjamin F. ; Lewis Herbert A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Jan 13, 1942 00:00 | US-2269462-A // Telephone system // Lewis Benjamin F. ; Lewis Herbert A. // Bell Telephone Labor Inc | ||||
| PDF File 2269408.pdf | 475 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2269408-A // Gain control circuits // Kinsburg Boris J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 475 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269408-A // Gain control circuits // Kinsburg Boris J. // Bell Telephone Labor Inc | ||||
| PDF File 2269375.pdf | 927 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2269375-A // Telephone system // Mccown Ray B. ; Schneckloth Harry Howard ; Smith Robert William // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 927 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269375-A // Telephone system // Mccown Ray B. ; Schneckloth Harry Howard ; Smith Robert William // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2269295.pdf | 563 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2269295-A // Compressed band telephony // Vadersen Charles W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 563 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269295-A // Compressed band telephony // Vadersen Charles W. // Bell Telephone Labor Inc | ||||
| PDF File 2269108.pdf | 628 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2269108-A // Telephone ringer // Hubbell James D. ; Wiebusch Charles F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 628 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269108-A // Telephone ringer // Hubbell James D. ; Wiebusch Charles F. // Bell Telephone Labor Inc | ||||
| PDF File 2269034.pdf | 1.25 MB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2269034-A // Broadcast switching system // Murphy Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269034-A // Broadcast switching system // Murphy Paul B. // Bell Telephone Labor Inc | ||||
| PDF File 2269022.pdf | 635 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2269022-A // Telephone system // Hccht George ; Lundstrom Alexis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 635 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2269022-A // Telephone system // Hccht George ; Lundstrom Alexis A. // Bell Telephone Labor Inc | ||||
| PDF File 2268984.pdf | 901 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2268984-A // Busy line recorder // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 901 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2268984-A // Busy line recorder // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2268844.pdf | 673 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2268844-A // Steerable antenna system // Polkinghorn Frank A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 673 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2268844-A // Steerable antenna system // Polkinghorn Frank A. // Bell Telephone Labor Inc | ||||
| PDF File 2268794.pdf | 462 kB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2268794-A // Telephone substation apparatus // Beardsley Harry I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 462 kB | Shaun Ewing | Jan 06, 1942 00:00 | US-2268794-A // Telephone substation apparatus // Beardsley Harry I. // Bell Telephone Labor Inc | ||||
| PDF File 2268670.pdf | 1.38 MB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2268670-A // Electron discharge device // Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.38 MB | Shaun Ewing | Jan 06, 1942 00:00 | US-2268670-A // Electron discharge device // Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2268635.pdf | 1.64 MB | Shaun Ewing | Jan 06, 1942 00:00 |
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US-2268635-A // Telephone system // Baumfalk John ; Hall Oliver C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.64 MB | Shaun Ewing | Jan 06, 1942 00:00 | US-2268635-A // Telephone system // Baumfalk John ; Hall Oliver C. // Bell Telephone Labor Inc | ||||
| PDF File 2268413.pdf | 1.25 MB | Shaun Ewing | Dec 30, 1941 00:00 |
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US-2268413-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Dec 30, 1941 00:00 | US-2268413-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2268397.pdf | 2.48 MB | Shaun Ewing | Dec 30, 1941 00:00 |
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US-2268397-A // Telephone system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.48 MB | Shaun Ewing | Dec 30, 1941 00:00 | US-2268397-A // Telephone system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2268365.pdf | 1.34 MB | Shaun Ewing | Dec 30, 1941 00:00 |
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US-2268365-A // Piezoelectric apparatus // Willard Gerald W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.34 MB | Shaun Ewing | Dec 30, 1941 00:00 | US-2268365-A // Piezoelectric apparatus // Willard Gerald W. // Bell Telephone Labor Inc | ||||
| PDF File 2268248.pdf | 416 kB | Shaun Ewing | Dec 30, 1941 00:00 |
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US-2268248-A // Cardholder // Goff Harold W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 416 kB | Shaun Ewing | Dec 30, 1941 00:00 | US-2268248-A // Cardholder // Goff Harold W. // Bell Telephone Labor Inc | ||||
| PDF File 2268235.pdf | 950 kB | Shaun Ewing | Dec 30, 1941 00:00 |
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US-2268235-A // Time delay relay // Aamodt Thoralf // Bell Telephone Labor Inc | |||
| Version 1 (current) | 950 kB | Shaun Ewing | Dec 30, 1941 00:00 | US-2268235-A // Time delay relay // Aamodt Thoralf // Bell Telephone Labor Inc |
