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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2469843.pdf | 1.78 MB | Shaun Ewing | May 10, 1949 00:00 |
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US-2469843-A // Electron transit time tube // Pierce John R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.78 MB | Shaun Ewing | May 10, 1949 00:00 | US-2469843-A // Electron transit time tube // Pierce John R. // Bell Telephone Labor Inc | ||||
| PDF File 2469837.pdf | 500 kB | Shaun Ewing | May 10, 1949 00:00 |
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US-2469837-A // Wave translating system // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 500 kB | Shaun Ewing | May 10, 1949 00:00 | US-2469837-A // Wave translating system // Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2469829.pdf | 474 kB | Shaun Ewing | May 10, 1949 00:00 |
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US-2469829-A // Method and system for measuring frequency // Kinzer John P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 474 kB | Shaun Ewing | May 10, 1949 00:00 | US-2469829-A // Method and system for measuring frequency // Kinzer John P. // Bell Telephone Labor Inc | ||||
| PDF File 2469569.pdf | 1.29 MB | Shaun Ewing | May 10, 1949 00:00 |
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US-2469569-A // Point contact negative resistance devices // Ohl Russell S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.29 MB | Shaun Ewing | May 10, 1949 00:00 | US-2469569-A // Point contact negative resistance devices // Ohl Russell S. // Bell Telephone Labor Inc | ||||
| PDF File 2469539.pdf | 1.19 MB | Shaun Ewing | May 10, 1949 00:00 |
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US-2469539-A // Radio control system // Abbott Henry H. ; Bascom Henry M. ; Fairlamb Preston B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.19 MB | Shaun Ewing | May 10, 1949 00:00 | US-2469539-A // Radio control system // Abbott Henry H. ; Bascom Henry M. ; Fairlamb Preston B. // Bell Telephone Labor Inc | ||||
| PDF File 2469280.pdf | 671 kB | Shaun Ewing | May 03, 1949 00:00 |
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US-2469280-A // Voltage regulator tube circuit // Scott Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 671 kB | Shaun Ewing | May 03, 1949 00:00 | US-2469280-A // Voltage regulator tube circuit // Scott Walter F. // Bell Telephone Labor Inc | ||||
| PDF File 2469176.pdf | 708 kB | Shaun Ewing | May 03, 1949 00:00 |
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US-2469176-A // Current supply apparatus // Potter James A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 708 kB | Shaun Ewing | May 03, 1949 00:00 | US-2469176-A // Current supply apparatus // Potter James A. // Bell Telephone Labor Inc | ||||
| PDF File 2468968.pdf | 2.26 MB | Shaun Ewing | May 03, 1949 00:00 |
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US-2468968-A // Magnetic field strength indicator // Jr. Edwin P. Felch, ; Slonczewski Thaddeus // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.26 MB | Shaun Ewing | May 03, 1949 00:00 | US-2468968-A // Magnetic field strength indicator // Jr. Edwin P. Felch, ; Slonczewski Thaddeus // Bell Telephone Labor Inc | ||||
| PDF File 2468850.pdf | 586 kB | Shaun Ewing | May 03, 1949 00:00 |
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US-2468850-A // Voltage regulation // Trucksess David E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 586 kB | Shaun Ewing | May 03, 1949 00:00 | US-2468850-A // Voltage regulation // Trucksess David E. // Bell Telephone Labor Inc | ||||
| PDF File 2468837.pdf | 756 kB | Shaun Ewing | May 03, 1949 00:00 |
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US-2468837-A // Magnetostrictive transducer // Jr. Robert L. Peck, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 756 kB | Shaun Ewing | May 03, 1949 00:00 | US-2468837-A // Magnetostrictive transducer // Jr. Robert L. Peck, // Bell Telephone Labor Inc | ||||
| PDF File 2468474.pdf | 438 kB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468474-A // Sound regulator for telephone ringers // Whidden William E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 438 kB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468474-A // Sound regulator for telephone ringers // Whidden William E. // Bell Telephone Labor Inc | ||||
| PDF File 2468462.pdf | 1.60 MB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468462-A // Telegraph transmitter control mechanism // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.60 MB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468462-A // Telegraph transmitter control mechanism // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2468454.pdf | 337 kB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468454-A // Acoustic wave filter with resistive termination, including side branch chamber // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 337 kB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468454-A // Acoustic wave filter with resistive termination, including side branch chamber // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2468429.pdf | 627 kB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468429-A // Selective message register system // Dehn Joseph W. ; Whitney Wiley // Bell Telephone Labor Inc | |||
| Version 1 (current) | 627 kB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468429-A // Selective message register system // Dehn Joseph W. ; Whitney Wiley // Bell Telephone Labor Inc | ||||
| PDF File 2468305.pdf | 1.09 MB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468305-A // Signaling system // Newell Norman A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468305-A // Signaling system // Newell Norman A. // Bell Telephone Labor Inc | ||||
| PDF File 2468302.pdf | 1.79 MB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468302-A // Quadrature phase shifting circuit // Meacham Larned A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.79 MB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468302-A // Quadrature phase shifting circuit // Meacham Larned A. // Bell Telephone Labor Inc | ||||
| PDF File 2468301.pdf | 1.09 MB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468301-A // Effective contouring of piezoelectric crystal elements // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468301-A // Effective contouring of piezoelectric crystal elements // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2468300.pdf | 1.44 MB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468300-A // Automatic telephone system // Maloney Martin E. ; Shipley Frank F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468300-A // Automatic telephone system // Maloney Martin E. ; Shipley Frank F. // Bell Telephone Labor Inc | ||||
| PDF File 2468299.pdf | 872 kB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468299-A // Supervisory signaling in telephone or like switching systems // Maloney Martin E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 872 kB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468299-A // Supervisory signaling in telephone or like switching systems // Maloney Martin E. // Bell Telephone Labor Inc | ||||
| PDF File 2468224.pdf | 495 kB | Shaun Ewing | Apr 26, 1949 00:00 |
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US-2468224-A // Magnetic reproducer using endless tape records // Munson Wilden A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 495 kB | Shaun Ewing | Apr 26, 1949 00:00 | US-2468224-A // Magnetic reproducer using endless tape records // Munson Wilden A. // Bell Telephone Labor Inc |
