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 1896195.pdf | 220 kB | Shaun Ewing | Feb 07, 1933 00:00 |
|
US-1896195-A // Electromagnetic signaling device // Green Irving W. ; Bisbee Frederick C. // American Telephone & Telegraph | |||
| Version 1 (current) | 220 kB | Shaun Ewing | Feb 07, 1933 00:00 | US-1896195-A // Electromagnetic signaling device // Green Irving W. ; Bisbee Frederick C. // American Telephone & Telegraph | ||||
| PDF File 1895542.pdf | 387 kB | Shaun Ewing | Jan 31, 1933 00:00 |
|
US-1895542-A // Pilot channel indicating system // Deardorff Ralph W. // American Telephone & Telegraph | |||
| Version 1 (current) | 387 kB | Shaun Ewing | Jan 31, 1933 00:00 | US-1895542-A // Pilot channel indicating system // Deardorff Ralph W. // American Telephone & Telegraph | ||||
| PDF File 1895531.pdf | 456 kB | Shaun Ewing | Jan 31, 1933 00:00 |
|
US-1895531-A // Electrooptical system // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 456 kB | Shaun Ewing | Jan 31, 1933 00:00 | US-1895531-A // Electrooptical system // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1895058.pdf | 571 kB | Shaun Ewing | Jan 24, 1933 00:00 |
|
US-1895058-A // Combined telegraphy and telephony // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 571 kB | Shaun Ewing | Jan 24, 1933 00:00 | US-1895058-A // Combined telegraphy and telephony // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1895020.pdf | 1.10 MB | Shaun Ewing | Jan 24, 1933 00:00 |
|
US-1895020-A // Telephone system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Jan 24, 1933 00:00 | US-1895020-A // Telephone system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1894335.pdf | 439 kB | Shaun Ewing | Jan 17, 1933 00:00 |
|
US-1894335-A // Phantom telephone circuit // Zinn Manvel K. // American Telephone & Telegraph | |||
| Version 1 (current) | 439 kB | Shaun Ewing | Jan 17, 1933 00:00 | US-1894335-A // Phantom telephone circuit // Zinn Manvel K. // American Telephone & Telegraph | ||||
| PDF File 1894322.pdf | 1.29 MB | Shaun Ewing | Jan 17, 1933 00:00 |
|
US-1894322-A // Means for eliminating distortion in repeaters // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.29 MB | Shaun Ewing | Jan 17, 1933 00:00 | US-1894322-A // Means for eliminating distortion in repeaters // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1893569.pdf | 517 kB | Shaun Ewing | Jan 10, 1933 00:00 |
|
US-1893569-A // Reduction of interference in carrier systems // Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 517 kB | Shaun Ewing | Jan 10, 1933 00:00 | US-1893569-A // Reduction of interference in carrier systems // Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1893545.pdf | 308 kB | Shaun Ewing | Jan 10, 1933 00:00 |
|
US-1893545-A // Alternating current amplifier // Gannett Danforth K. // American Telephone & Telegraph | |||
| Version 1 (current) | 308 kB | Shaun Ewing | Jan 10, 1933 00:00 | US-1893545-A // Alternating current amplifier // Gannett Danforth K. // American Telephone & Telegraph | ||||
| PDF File 1891299.pdf | 373 kB | Shaun Ewing | Dec 20, 1932 00:00 |
|
US-1891299-A // Radio telephone system // Anderson Clifford N. ; Taylor Edmund R. ; Wright Sumner B. // American Telephone & Telegraph | |||
| Version 1 (current) | 373 kB | Shaun Ewing | Dec 20, 1932 00:00 | US-1891299-A // Radio telephone system // Anderson Clifford N. ; Taylor Edmund R. ; Wright Sumner B. // American Telephone & Telegraph | ||||
| PDF File 1891297.pdf | 947 kB | Shaun Ewing | Dec 20, 1932 00:00 |
|
US-1891297-A // Variable gain circuit device // Wintringham William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 947 kB | Shaun Ewing | Dec 20, 1932 00:00 | US-1891297-A // Variable gain circuit device // Wintringham William T. // American Telephone & Telegraph | ||||
| PDF File 1890561.pdf | 279 kB | Shaun Ewing | Dec 13, 1932 00:00 |
|
US-1890561-A // Telephone circuit // Cash Claude C. // American Telephone & Telegraph | |||
| Version 1 (current) | 279 kB | Shaun Ewing | Dec 13, 1932 00:00 | US-1890561-A // Telephone circuit // Cash Claude C. // American Telephone & Telegraph | ||||
| PDF File 1890543.pdf | 396 kB | Shaun Ewing | Dec 13, 1932 00:00 |
|
US-1890543-A // Current-suppressor // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 396 kB | Shaun Ewing | Dec 13, 1932 00:00 | US-1890543-A // Current-suppressor // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1889824.pdf | 514 kB | Shaun Ewing | Dec 06, 1932 00:00 |
|
US-1889824-A // Testing system // Edwards Paul G. // American Telephone & Telegraph | |||
| Version 1 (current) | 514 kB | Shaun Ewing | Dec 06, 1932 00:00 | US-1889824-A // Testing system // Edwards Paul G. // American Telephone & Telegraph | ||||
| PDF File 1889821.pdf | 365 kB | Shaun Ewing | Dec 06, 1932 00:00 |
|
US-1889821-A // Prevention of overhearing in program circuits // Chapman Arthur G. ; Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 365 kB | Shaun Ewing | Dec 06, 1932 00:00 | US-1889821-A // Prevention of overhearing in program circuits // Chapman Arthur G. ; Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1889083.pdf | 682 kB | Shaun Ewing | Nov 29, 1932 00:00 |
|
US-1889083-A // Frequency stabilizing system // Wintringham William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 682 kB | Shaun Ewing | Nov 29, 1932 00:00 | US-1889083-A // Frequency stabilizing system // Wintringham William T. // American Telephone & Telegraph | ||||
| PDF File 1889053.pdf | 785 kB | Shaun Ewing | Nov 29, 1932 00:00 |
|
US-1889053-A // Annunciator system // Nelson Stanley F. // American Telephone & Telegraph | |||
| Version 1 (current) | 785 kB | Shaun Ewing | Nov 29, 1932 00:00 | US-1889053-A // Annunciator system // Nelson Stanley F. // American Telephone & Telegraph | ||||
| PDF File 1888280.pdf | 666 kB | Shaun Ewing | Nov 22, 1932 00:00 |
|
US-1888280-A // Reduction of interference // Mccann Thomas A. // American Telephone & Telegraph | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Nov 22, 1932 00:00 | US-1888280-A // Reduction of interference // Mccann Thomas A. // American Telephone & Telegraph | ||||
| PDF File 1888266.pdf | 599 kB | Shaun Ewing | Nov 22, 1932 00:00 |
|
US-1888266-A // Measurement of cross-talk // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 599 kB | Shaun Ewing | Nov 22, 1932 00:00 | US-1888266-A // Measurement of cross-talk // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1887599.pdf | 219 kB | Shaun Ewing | Nov 15, 1932 00:00 |
|
US-1887599-A // Constant current regulation // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Nov 15, 1932 00:00 | US-1887599-A // Constant current regulation // Nyquist Harry // American Telephone & Telegraph |
