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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2552626.pdf | 486 kB | Shaun Ewing | May 15, 1951 00:00 |
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US-2552626-A // Silicon-germanium resistor and method of making it // Fisher Joseph R. ; Teal Gordon K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 486 kB | Shaun Ewing | May 15, 1951 00:00 | US-2552626-A // Silicon-germanium resistor and method of making it // Fisher Joseph R. ; Teal Gordon K. // Bell Telephone Labor Inc | ||||
| PDF File 2552619.pdf | 991 kB | Shaun Ewing | May 15, 1951 00:00 |
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US-2552619-A // Electron beam coder for pulse code modulation // Carbrey Robert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 991 kB | Shaun Ewing | May 15, 1951 00:00 | US-2552619-A // Electron beam coder for pulse code modulation // Carbrey Robert L. // Bell Telephone Labor Inc | ||||
| PDF File 2550909.pdf | 1.51 MB | Shaun Ewing | May 01, 1951 00:00 |
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US-2550909-A // Recording system // Busch Aloysius J. ; Vroom Edward // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | May 01, 1951 00:00 | US-2550909-A // Recording system // Busch Aloysius J. ; Vroom Edward // Bell Telephone Labor Inc | ||||
| PDF File 2550605.pdf | 856 kB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2550605-A // Circuit closing device // Schenck Alfred K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 856 kB | Shaun Ewing | Apr 24, 1951 00:00 | US-2550605-A // Circuit closing device // Schenck Alfred K. // Bell Telephone Labor Inc | ||||
| PDF File 2550600.pdf | 496 kB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2550600-A // Indicating circuit // Rehm Theodore C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Apr 24, 1951 00:00 | US-2550600-A // Indicating circuit // Rehm Theodore C. // Bell Telephone Labor Inc | ||||
| PDF File 2550596.pdf | 1.16 MB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2550596-A // Equalizer for transmission lines // Pfleger Kenneth W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Apr 24, 1951 00:00 | US-2550596-A // Equalizer for transmission lines // Pfleger Kenneth W. // Bell Telephone Labor Inc | ||||
| PDF File 2550595.pdf | 1.06 MB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2550595-A // Equalizer for transmission lines // Pfleger Kenneth W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.06 MB | Shaun Ewing | Apr 24, 1951 00:00 | US-2550595-A // Equalizer for transmission lines // Pfleger Kenneth W. // Bell Telephone Labor Inc | ||||
| PDF File 2550585.pdf | 2.88 MB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2550585-A // Telephone identification circuit // Murphy Richard P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.88 MB | Shaun Ewing | Apr 24, 1951 00:00 | US-2550585-A // Telephone identification circuit // Murphy Richard P. // Bell Telephone Labor Inc | ||||
| PDF File 2550518.pdf | 1.80 MB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2550518-A // Control of impedance of semiconductor amplifier circuits // Barney Harold L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.80 MB | Shaun Ewing | Apr 24, 1951 00:00 | US-2550518-A // Control of impedance of semiconductor amplifier circuits // Barney Harold L. // Bell Telephone Labor Inc | ||||
| PDF File 2549872.pdf | 2.08 MB | Shaun Ewing | Apr 24, 1951 00:00 |
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US-2549872-A // Focusing ultrasonic radiator // Willard Gerald W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.08 MB | Shaun Ewing | Apr 24, 1951 00:00 | US-2549872-A // Focusing ultrasonic radiator // Willard Gerald W. // Bell Telephone Labor Inc | ||||
| PDF File 2549551.pdf | 873 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549551-A // Grid electrode structure and manufacturing method therefor // Walsh Edward J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 873 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549551-A // Grid electrode structure and manufacturing method therefor // Walsh Edward J. // Bell Telephone Labor Inc | ||||
| PDF File 2549550.pdf | 765 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549550-A // Vibration-operated transistor // Jr. Robert L. Wallace, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 765 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549550-A // Vibration-operated transistor // Jr. Robert L. Wallace, // Bell Telephone Labor Inc | ||||
| PDF File 2549505.pdf | 1.03 MB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549505-A // Phase or frequency modulation system // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549505-A // Phase or frequency modulation system // Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2549504.pdf | 896 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549504-A // Method of sealing glass to metal // Messana Joseph P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 896 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549504-A // Method of sealing glass to metal // Messana Joseph P. // Bell Telephone Labor Inc | ||||
| PDF File 2549464.pdf | 523 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549464-A // Electric power source // Hartley Ralph V. L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 523 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549464-A // Electric power source // Hartley Ralph V. L. // Bell Telephone Labor Inc | ||||
| PDF File 2549422.pdf | 943 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549422-A // Decoder for multiple carrier pulse code modulation signals // Carbrey Robert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 943 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549422-A // Decoder for multiple carrier pulse code modulation signals // Carbrey Robert L. // Bell Telephone Labor Inc | ||||
| PDF File 2549143.pdf | 663 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549143-A // Microwave broadcast antenna // Tinus William C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 663 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549143-A // Microwave broadcast antenna // Tinus William C. // Bell Telephone Labor Inc | ||||
| PDF File 2549131.pdf | 851 kB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549131-A // Radar equipment testing system // Rideout Vincent C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 851 kB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549131-A // Radar equipment testing system // Rideout Vincent C. // Bell Telephone Labor Inc | ||||
| PDF File 2549091.pdf | 1.07 MB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549091-A // Diaphragm for electroacoustic transducers // Hopkins Harris F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549091-A // Diaphragm for electroacoustic transducers // Hopkins Harris F. // Bell Telephone Labor Inc | ||||
| PDF File 2549065.pdf | 1.25 MB | Shaun Ewing | Apr 17, 1951 00:00 |
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US-2549065-A // Frequency discriminative electric transducer // Dietzold Robert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Apr 17, 1951 00:00 | US-2549065-A // Frequency discriminative electric transducer // Dietzold Robert L. // Bell Telephone Labor Inc |
