Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2538621.pdf | 362 kB | Shaun Ewing | Jan 16, 1951 00:00 |
|
US-2538621-A // Electrodynamic transducer and connector therefor // Hopkins Harris F. ; Prescott Robert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 362 kB | Shaun Ewing | Jan 16, 1951 00:00 | US-2538621-A // Electrodynamic transducer and connector therefor // Hopkins Harris F. ; Prescott Robert E. // Bell Telephone Labor Inc | ||||
| PDF File 2538636.pdf | 4.41 MB | Shaun Ewing | Jan 16, 1951 00:00 |
|
US-2538636-A // Digital computer // Williams Samuel B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.41 MB | Shaun Ewing | Jan 16, 1951 00:00 | US-2538636-A // Digital computer // Williams Samuel B. // Bell Telephone Labor Inc | ||||
| PDF File 2539535.pdf | 834 kB | Shaun Ewing | Jan 30, 1951 00:00 |
|
US-2539535-A // Source of electrical energy // Espenschied Lloyd // Bell Telephone Labor Inc | |||
| Version 1 (current) | 834 kB | Shaun Ewing | Jan 30, 1951 00:00 | US-2539535-A // Source of electrical energy // Espenschied Lloyd // Bell Telephone Labor Inc | ||||
| PDF File 2539537.pdf | 1.02 MB | Shaun Ewing | Jan 30, 1951 00:00 |
|
US-2539537-A // Multifrequency combined radio transmitter and receiver // Harley John B. ; Nordahl John G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Jan 30, 1951 00:00 | US-2539537-A // Multifrequency combined radio transmitter and receiver // Harley John B. ; Nordahl John G. // Bell Telephone Labor Inc | ||||
| PDF File 2539550.pdf | 719 kB | Shaun Ewing | Jan 30, 1951 00:00 |
|
US-2539550-A // Telegraph hub repeater // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 719 kB | Shaun Ewing | Jan 30, 1951 00:00 | US-2539550-A // Telegraph hub repeater // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2539551.pdf | 1.07 MB | Shaun Ewing | Jan 30, 1951 00:00 |
|
US-2539551-A // Telegraph hub circuit repeater // Rea Wilton T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Jan 30, 1951 00:00 | US-2539551-A // Telegraph hub circuit repeater // Rea Wilton T. // Bell Telephone Labor Inc | ||||
| PDF File 2539556.pdf | 1.12 MB | Shaun Ewing | Jan 30, 1951 00:00 |
|
US-2539556-A // Variable delay speech privacy system // Steinberg John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Jan 30, 1951 00:00 | US-2539556-A // Variable delay speech privacy system // Steinberg John C. // Bell Telephone Labor Inc | ||||
| PDF File 2539623.pdf | 1.79 MB | Shaun Ewing | Jan 30, 1951 00:00 |
|
US-2539623-A // Communication system // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.79 MB | Shaun Ewing | Jan 30, 1951 00:00 | US-2539623-A // Communication system // Heising Raymond A. // Bell Telephone Labor Inc | ||||
| PDF File 2540478.pdf | 1.25 MB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540478-A // Multivibrator // Frost George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540478-A // Multivibrator // Frost George R. // Bell Telephone Labor Inc | ||||
| PDF File 2540487.pdf | 369 kB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540487-A // Electroacoustic transducer // Mott Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 369 kB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540487-A // Electroacoustic transducer // Mott Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 2540488.pdf | 1.03 MB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540488-A // Microwave filter // Mumford William W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540488-A // Microwave filter // Mumford William W. // Bell Telephone Labor Inc | ||||
| PDF File 2540498.pdf | 479 kB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540498-A // Microphone damping system having rear openings // Tallman Samuel C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540498-A // Microphone damping system having rear openings // Tallman Samuel C. // Bell Telephone Labor Inc | ||||
| PDF File 2540834.pdf | 813 kB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540834-A // Electron discharge device // Sears Raymond W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 813 kB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540834-A // Electron discharge device // Sears Raymond W. // Bell Telephone Labor Inc | ||||
| PDF File 2540835.pdf | 755 kB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540835-A // Cathode-ray device // Anderson Alva Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 755 kB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540835-A // Cathode-ray device // Anderson Alva Eugene // Bell Telephone Labor Inc | ||||
| PDF File 2540839.pdf | 1.55 MB | Shaun Ewing | Feb 06, 1951 00:00 |
|
US-2540839-A // Wave guide system // Southworth George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.55 MB | Shaun Ewing | Feb 06, 1951 00:00 | US-2540839-A // Wave guide system // Southworth George C. // Bell Telephone Labor Inc | ||||
| PDF File 2541195.pdf | 383 kB | Shaun Ewing | Feb 13, 1951 00:00 |
|
US-2541195-A // Resonator with multiple electrodes // Bowen Arnold E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 383 kB | Shaun Ewing | Feb 13, 1951 00:00 | US-2541195-A // Resonator with multiple electrodes // Bowen Arnold E. // Bell Telephone Labor Inc | ||||
| PDF File 2541259.pdf | 724 kB | Shaun Ewing | Feb 13, 1951 00:00 |
|
US-2541259-A // Automatic frequency control system // Maggio John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 724 kB | Shaun Ewing | Feb 13, 1951 00:00 | US-2541259-A // Automatic frequency control system // Maggio John B. // Bell Telephone Labor Inc | ||||
| PDF File 2541276.pdf | 1.28 MB | Shaun Ewing | Feb 13, 1951 00:00 |
|
US-2541276-A // Differential control circuit // Oliver Bernard M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Feb 13, 1951 00:00 | US-2541276-A // Differential control circuit // Oliver Bernard M. // Bell Telephone Labor Inc | ||||
| PDF File 2541294.pdf | 308 kB | Shaun Ewing | Feb 13, 1951 00:00 |
|
US-2541294-A // Locking electrical connector // Ronci Victor L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 308 kB | Shaun Ewing | Feb 13, 1951 00:00 | US-2541294-A // Locking electrical connector // Ronci Victor L. // Bell Telephone Labor Inc | ||||
| PDF File 2541320.pdf | 619 kB | Shaun Ewing | Feb 13, 1951 00:00 |
|
US-2541320-A // Multifrequency generator // Bachelet Albert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 619 kB | Shaun Ewing | Feb 13, 1951 00:00 | US-2541320-A // Multifrequency generator // Bachelet Albert E. // Bell Telephone Labor Inc |
