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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2594923.pdf | 1.45 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594923-A // Call data recording telephone system // Hersey Ralph E. ; Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.45 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594923-A // Call data recording telephone system // Hersey Ralph E. ; Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2594897.pdf | 907 kB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594897-A // Cathode structure for electron discharge tubes // Field Lester M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 907 kB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594897-A // Cathode structure for electron discharge tubes // Field Lester M. // Bell Telephone Labor Inc | ||||
| PDF File 2594890.pdf | 756 kB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594890-A // Contact protection arrangement // Ellwood Walter B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 756 kB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594890-A // Contact protection arrangement // Ellwood Walter B. // Bell Telephone Labor Inc | ||||
| PDF File 2594530.pdf | 363 kB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594530-A // Amplifying system // Young Clarence H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 363 kB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594530-A // Amplifying system // Young Clarence H. // Bell Telephone Labor Inc | ||||
| PDF File 2594505.pdf | 3.02 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594505-A // Calling line identification and registering system // Seudder Frederick J. ; Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.02 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594505-A // Calling line identification and registering system // Seudder Frederick J. ; Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2594495.pdf | 2.26 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594495-A // Magnetic recording system for call data in automatic telephony // Retallack John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.26 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594495-A // Magnetic recording system for call data in automatic telephony // Retallack John B. // Bell Telephone Labor Inc | ||||
| PDF File 2594449.pdf | 1.36 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594449-A // Transistor switching device // Kircher Reymond J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.36 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594449-A // Transistor switching device // Kircher Reymond J. // Bell Telephone Labor Inc | ||||
| PDF File 2594409.pdf | 1.22 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594409-A // Directive antenna // Feldman Carl B. H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.22 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594409-A // Directive antenna // Feldman Carl B. H. // Bell Telephone Labor Inc | ||||
| PDF File 2594389.pdf | 769 kB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594389-A // Double-lockout interconnecting system // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 769 kB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594389-A // Double-lockout interconnecting system // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 2594336.pdf | 950 kB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594336-A // Electrical counter circuit // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 950 kB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594336-A // Electrical counter circuit // Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2594325.pdf | 1.15 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594325-A // Spaced pulse impulse sender // Lovell Clarence A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.15 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594325-A // Spaced pulse impulse sender // Lovell Clarence A. // Bell Telephone Labor Inc | ||||
| PDF File 2594300.pdf | 1.12 MB | Shaun Ewing | Apr 29, 1952 00:00 |
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US-2594300-A // Spaced-pulse type impulse sender // Dunlap Kermit S. ; Lovell Clarence A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Apr 29, 1952 00:00 | US-2594300-A // Spaced-pulse type impulse sender // Dunlap Kermit S. ; Lovell Clarence A. // Bell Telephone Labor Inc | ||||
| PDF File 2594087.pdf | 2.03 MB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2594087-A // Radio receiver selection system // Soffel Robert O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.03 MB | Shaun Ewing | Apr 22, 1952 00:00 | US-2594087-A // Radio receiver selection system // Soffel Robert O. // Bell Telephone Labor Inc | ||||
| PDF File 2594078.pdf | 828 kB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2594078-A // Electronic marker for cathode-ray indicator tubes // Scoville Ray R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 828 kB | Shaun Ewing | Apr 22, 1952 00:00 | US-2594078-A // Electronic marker for cathode-ray indicator tubes // Scoville Ray R. // Bell Telephone Labor Inc | ||||
| PDF File 2594019.pdf | 1.17 MB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2594019-A // Current supply apparatus // Holman Erwin W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Apr 22, 1952 00:00 | US-2594019-A // Current supply apparatus // Holman Erwin W. // Bell Telephone Labor Inc | ||||
| PDF File 2594014.pdf | 6.60 MB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2594014-A // Crossbar tandem office for step-bystep telephone areas // Haines William T. ; Newsom James B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 6.60 MB | Shaun Ewing | Apr 22, 1952 00:00 | US-2594014-A // Crossbar tandem office for step-bystep telephone areas // Haines William T. ; Newsom James B. // Bell Telephone Labor Inc | ||||
| PDF File 2593695.pdf | 1.66 MB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2593695-A // Analyzer for determining the fundamental frequency of a complex wave // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.66 MB | Shaun Ewing | Apr 22, 1952 00:00 | US-2593695-A // Analyzer for determining the fundamental frequency of a complex wave // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2593694.pdf | 930 kB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2593694-A // Wave analyzer for determining fundamental frequency of a complex wave // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 930 kB | Shaun Ewing | Apr 22, 1952 00:00 | US-2593694-A // Wave analyzer for determining fundamental frequency of a complex wave // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2593463.pdf | 603 kB | Shaun Ewing | Apr 22, 1952 00:00 |
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US-2593463-A // Frequency stabilized microwave oscillator // Kinzer John P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 603 kB | Shaun Ewing | Apr 22, 1952 00:00 | US-2593463-A // Frequency stabilized microwave oscillator // Kinzer John P. // Bell Telephone Labor Inc | ||||
| PDF File 2593330.pdf | 1.51 MB | Shaun Ewing | Apr 15, 1952 00:00 |
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US-2593330-A // Variable frequency relaxation oscillator // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Apr 15, 1952 00:00 | US-2593330-A // Variable frequency relaxation oscillator // Mohr Milton E. // Bell Telephone Labor Inc |
