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 1496848.pdf | 522 kB | Shaun Ewing | Jun 10, 1924 00:00 |
|
US-1496848-A // Selective-signaling system // Holden William H.t. // American Telephone & Telegraph | |||
| Version 1 (current) | 522 kB | Shaun Ewing | Jun 10, 1924 00:00 | US-1496848-A // Selective-signaling system // Holden William H.t. // American Telephone & Telegraph | ||||
| PDF File 1520813.pdf | 522 kB | Shaun Ewing | Dec 30, 1924 00:00 |
|
US-1520813-A // Selective circuits for multiplex transmission // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 522 kB | Shaun Ewing | Dec 30, 1924 00:00 | US-1520813-A // Selective circuits for multiplex transmission // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1688454.pdf | 521 kB | Shaun Ewing | Oct 23, 1928 00:00 |
|
US-1688454-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph | |||
| Version 1 (current) | 521 kB | Shaun Ewing | Oct 23, 1928 00:00 | US-1688454-A // Telephone signaling system // Demarest Charles S. ; Loynes Owen H. // American Telephone & Telegraph | ||||
| PDF File 1693659.pdf | 520 kB | Shaun Ewing | Dec 04, 1928 00:00 |
|
US-1693659-A // Echo suppressor // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Dec 04, 1928 00:00 | US-1693659-A // Echo suppressor // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | ||||
| PDF File 1752303.pdf | 520 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752303-A // Interference neutralizer for alternating-current telegraph systems // Kelley Leo A. // American Telephone & Telegraph | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752303-A // Interference neutralizer for alternating-current telegraph systems // Kelley Leo A. // American Telephone & Telegraph | ||||
| PDF File 1734112.pdf | 520 kB | Shaun Ewing | Nov 05, 1929 00:00 |
|
US-1734112-A // Radio receiving system // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Nov 05, 1929 00:00 | US-1734112-A // Radio receiving system // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1747220.pdf | 518 kB | Shaun Ewing | Feb 18, 1930 00:00 |
|
US-1747220-A // Automatic selection of receiving channels // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 518 kB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747220-A // Automatic selection of receiving channels // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1554189.pdf | 518 kB | Shaun Ewing | Sept 22, 1925 00:00 |
|
US-1554189-A // Equalization of carrier transmission // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 518 kB | Shaun Ewing | Sept 22, 1925 00:00 | US-1554189-A // Equalization of carrier transmission // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1673792.pdf | 517 kB | Shaun Ewing | Jun 19, 1928 00:00 |
|
US-1673792-A // Level control for carrier-transmission systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 517 kB | Shaun Ewing | Jun 19, 1928 00:00 | US-1673792-A // Level control for carrier-transmission systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1728239.pdf | 517 kB | Shaun Ewing | Sept 17, 1929 00:00 |
|
US-1728239-A // Arrangement for establishing time intervals // Green Irving W. // American Telephone & Telegraph | |||
| Version 1 (current) | 517 kB | Shaun Ewing | Sept 17, 1929 00:00 | US-1728239-A // Arrangement for establishing time intervals // Green Irving W. // American Telephone & Telegraph | ||||
| PDF File 1494382.pdf | 517 kB | Shaun Ewing | May 20, 1924 00:00 |
|
US-1494382-A // Means for preventing electrical interference // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 517 kB | Shaun Ewing | May 20, 1924 00:00 | US-1494382-A // Means for preventing electrical interference // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1707997.pdf | 516 kB | Shaun Ewing | Apr 09, 1929 00:00 |
|
US-1707997-A // Telegraph system // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Apr 09, 1929 00:00 | US-1707997-A // Telegraph system // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1752346.pdf | 516 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752346-A // Interference neutralizer for alternating-current telegraph systems // Kelley Leo A. ; Monk Newton ; Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752346-A // Interference neutralizer for alternating-current telegraph systems // Kelley Leo A. ; Monk Newton ; Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1543772.pdf | 515 kB | Shaun Ewing | Jun 30, 1925 00:00 |
|
US-1543772-A // Apparatus for neutralizing radiointerference on wire lines // Hunter Russell N. // American Telephone & Telegraph | |||
| Version 1 (current) | 515 kB | Shaun Ewing | Jun 30, 1925 00:00 | US-1543772-A // Apparatus for neutralizing radiointerference on wire lines // Hunter Russell N. // American Telephone & Telegraph | ||||
| PDF File 1749045.pdf | 515 kB | Shaun Ewing | Mar 04, 1930 00:00 |
|
US-1749045-A // Signaling system // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | |||
| Version 1 (current) | 515 kB | Shaun Ewing | Mar 04, 1930 00:00 | US-1749045-A // Signaling system // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | ||||
| PDF File 1468101.pdf | 514 kB | Shaun Ewing | Sept 18, 1923 00:00 |
|
US-1468101-A // Testing circuits // Clark Alva B. ; Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 514 kB | Shaun Ewing | Sept 18, 1923 00:00 | US-1468101-A // Testing circuits // Clark Alva B. ; Crisson George // American Telephone & Telegraph | ||||
| PDF File 1776821.pdf | 513 kB | Shaun Ewing | Sept 30, 1930 00:00 |
|
US-1776821-A // Automatic volume-control system // Strieby Maurice E. // American Telephone & Telegraph | |||
| Version 1 (current) | 513 kB | Shaun Ewing | Sept 30, 1930 00:00 | US-1776821-A // Automatic volume-control system // Strieby Maurice E. // American Telephone & Telegraph | ||||
| PDF File 1678674.pdf | 512 kB | Shaun Ewing | Jul 31, 1928 00:00 |
|
US-1678674-A // Method and apparatus for computation // Jr. Walter Koenig, // American Telephone & Telegraph | |||
| Version 1 (current) | 512 kB | Shaun Ewing | Jul 31, 1928 00:00 | US-1678674-A // Method and apparatus for computation // Jr. Walter Koenig, // American Telephone & Telegraph | ||||
| PDF File 1585701.pdf | 511 kB | Shaun Ewing | May 25, 1926 00:00 |
|
US-1585701-A // Method and means for telephone transmission measurements // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 511 kB | Shaun Ewing | May 25, 1926 00:00 | US-1585701-A // Method and means for telephone transmission measurements // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1433599.pdf | 510 kB | Shaun Ewing | Oct 31, 1922 00:00 |
|
US-1433599-A // Radiocircuit // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 510 kB | Shaun Ewing | Oct 31, 1922 00:00 | US-1433599-A // Radiocircuit // Bown Ralph // American Telephone & Telegraph |
