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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2554847.pdf | 626 kB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554847-A // Telegraph mark-hold circuit // Vanderlippe Richard A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 626 kB | Shaun Ewing | May 29, 1951 00:00 | US-2554847-A // Telegraph mark-hold circuit // Vanderlippe Richard A. // Bell Telephone Labor Inc | ||||
| PDF File 2554837.pdf | 662 kB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554837-A // Time delay control apparatus // Meszaros George W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 662 kB | Shaun Ewing | May 29, 1951 00:00 | US-2554837-A // Time delay control apparatus // Meszaros George W. // Bell Telephone Labor Inc | ||||
| PDF File 2554835.pdf | 435 kB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554835-A // Recording system // Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 435 kB | Shaun Ewing | May 29, 1951 00:00 | US-2554835-A // Recording system // Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 2554834.pdf | 330 kB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554834-A // Coupling for telephone receivers and hearing aid sets // Lavery Grant G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 330 kB | Shaun Ewing | May 29, 1951 00:00 | US-2554834-A // Coupling for telephone receivers and hearing aid sets // Lavery Grant G. // Bell Telephone Labor Inc | ||||
| PDF File 2554828.pdf | 1.03 MB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554828-A // Testing repeaters in transmission systems by shunting out individual repeaters // Jacobs Oliver B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | May 29, 1951 00:00 | US-2554828-A // Testing repeaters in transmission systems by shunting out individual repeaters // Jacobs Oliver B. // Bell Telephone Labor Inc | ||||
| PDF File 2554591.pdf | 2.35 MB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554591-A // Radio paging system for vehicles // Praizner Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.35 MB | Shaun Ewing | May 29, 1951 00:00 | US-2554591-A // Radio paging system for vehicles // Praizner Edward // Bell Telephone Labor Inc | ||||
| PDF File 2554582.pdf | 279 kB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554582-A // Magnetic recorder // Mallina Rudolph F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 279 kB | Shaun Ewing | May 29, 1951 00:00 | US-2554582-A // Magnetic recorder // Mallina Rudolph F. // Bell Telephone Labor Inc | ||||
| PDF File 2554549.pdf | 765 kB | Shaun Ewing | May 29, 1951 00:00 |
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US-2554549-A // Recorder failure indicator // Albert Walter P. ; Goff Harold W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 765 kB | Shaun Ewing | May 29, 1951 00:00 | US-2554549-A // Recorder failure indicator // Albert Walter P. ; Goff Harold W. // Bell Telephone Labor Inc | ||||
| PDF File 2554155.pdf | 7.92 MB | Shaun Ewing | May 22, 1951 00:00 |
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US-2554155-A // Ground trainer for training aircraft crews // Rippere Robert O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 7.92 MB | Shaun Ewing | May 22, 1951 00:00 | US-2554155-A // Ground trainer for training aircraft crews // Rippere Robert O. // Bell Telephone Labor Inc | ||||
| PDF File 2554153.pdf | 739 kB | Shaun Ewing | May 22, 1951 00:00 |
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US-2554153-A // Telephotograph system, including a pilot gain control channel // Phelps Walter A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 739 kB | Shaun Ewing | May 22, 1951 00:00 | US-2554153-A // Telephotograph system, including a pilot gain control channel // Phelps Walter A. // Bell Telephone Labor Inc | ||||
| PDF File 2554149.pdf | 702 kB | Shaun Ewing | May 22, 1951 00:00 |
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US-2554149-A // Translator for calling line identification // Miloche Herman A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 702 kB | Shaun Ewing | May 22, 1951 00:00 | US-2554149-A // Translator for calling line identification // Miloche Herman A. // Bell Telephone Labor Inc | ||||
| PDF File 2553752.pdf | 369 kB | Shaun Ewing | May 22, 1951 00:00 |
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US-2553752-A // Combined multivibrator and sweep circuit // Lange Owen E. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 369 kB | Shaun Ewing | May 22, 1951 00:00 | US-2553752-A // Combined multivibrator and sweep circuit // Lange Owen E. De // Bell Telephone Labor Inc | ||||
| PDF File 2553749.pdf | 1.00 MB | Shaun Ewing | May 22, 1951 00:00 |
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US-2553749-A // Sealing fixture for the manufacture of electron discharge devices // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | May 22, 1951 00:00 | US-2553749-A // Sealing fixture for the manufacture of electron discharge devices // Clark James E. ; Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2553747.pdf | 768 kB | Shaun Ewing | May 22, 1951 00:00 |
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US-2553747-A // Method and means for transposing open-wire lines // Carr James A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 768 kB | Shaun Ewing | May 22, 1951 00:00 | US-2553747-A // Method and means for transposing open-wire lines // Carr James A. // Bell Telephone Labor Inc | ||||
| PDF File 2553491.pdf | 529 kB | Shaun Ewing | May 15, 1951 00:00 |
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US-2553491-A // Acoustic transducer utilizing semiconductors // Shockley William // Bell Telephone Labor Inc | |||
| Version 1 (current) | 529 kB | Shaun Ewing | May 15, 1951 00:00 | US-2553491-A // Acoustic transducer utilizing semiconductors // Shockley William // Bell Telephone Labor Inc | ||||
| PDF File 2553490.pdf | 1.02 MB | Shaun Ewing | May 15, 1951 00:00 |
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US-2553490-A // Magnetic control of semiconductor currents // Jr. Robert L. Wallace, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | May 15, 1951 00:00 | US-2553490-A // Magnetic control of semiconductor currents // Jr. Robert L. Wallace, // Bell Telephone Labor Inc | ||||
| PDF File 2553255.pdf | 897 kB | Shaun Ewing | May 15, 1951 00:00 |
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US-2553255-A // Telephone substation apparatus // Hayward John M. ; Jr. Charles A. Johnson, ; Neisser Wilson R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 897 kB | Shaun Ewing | May 15, 1951 00:00 | US-2553255-A // Telephone substation apparatus // Hayward John M. ; Jr. Charles A. Johnson, ; Neisser Wilson R. // Bell Telephone Labor Inc | ||||
| PDF File 2553245.pdf | 690 kB | Shaun Ewing | May 15, 1951 00:00 |
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US-2553245-A // Electronic tracing system // Espenschied Lloyd // Bell Telephone Labor Inc | |||
| Version 1 (current) | 690 kB | Shaun Ewing | May 15, 1951 00:00 | US-2553245-A // Electronic tracing system // Espenschied Lloyd // Bell Telephone Labor Inc | ||||
| PDF File 2552640.pdf | 327 kB | Shaun Ewing | May 15, 1951 00:00 |
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US-2552640-A // Oxide resistors and method of making them // Morin Francis J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 327 kB | Shaun Ewing | May 15, 1951 00:00 | US-2552640-A // Oxide resistors and method of making them // Morin Francis J. // Bell Telephone Labor Inc | ||||
| PDF File 2552629.pdf | 2.49 MB | Shaun Ewing | May 15, 1951 00:00 |
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US-2552629-A // Error-detecting and correcting system // Hamming Richard W. ; Holbrook Bernard D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.49 MB | Shaun Ewing | May 15, 1951 00:00 | US-2552629-A // Error-detecting and correcting system // Hamming Richard W. ; Holbrook Bernard D. // Bell Telephone Labor Inc |
