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 1583827.pdf | 629 kB | Shaun Ewing | May 11, 1926 00:00 |
|
US-1583827-A // Loading transmission lines // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 629 kB | Shaun Ewing | May 11, 1926 00:00 | US-1583827-A // Loading transmission lines // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1784194.pdf | 629 kB | Shaun Ewing | Dec 09, 1930 00:00 |
|
US-1784194-A // Transmission frequency-delay-measuring circuit // Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 629 kB | Shaun Ewing | Dec 09, 1930 00:00 | US-1784194-A // Transmission frequency-delay-measuring circuit // Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 1757225.pdf | 628 kB | Shaun Ewing | May 06, 1930 00:00 |
|
US-1757225-A // Telegraph alarm circuit // Singer Fred J. // American Telephone & Telegraph | |||
| Version 1 (current) | 628 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757225-A // Telegraph alarm circuit // Singer Fred J. // American Telephone & Telegraph | ||||
| PDF File 1501104.pdf | 628 kB | Shaun Ewing | Jul 15, 1924 00:00 |
|
US-1501104-A // Multiplex radio system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 628 kB | Shaun Ewing | Jul 15, 1924 00:00 | US-1501104-A // Multiplex radio system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1568891.pdf | 625 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568891-A // Repeater circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 625 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568891-A // Repeater circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1585702.pdf | 624 kB | Shaun Ewing | May 25, 1926 00:00 |
|
US-1585702-A // Echo suppressor for two-wire systems // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 624 kB | Shaun Ewing | May 25, 1926 00:00 | US-1585702-A // Echo suppressor for two-wire systems // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1442819.pdf | 624 kB | Shaun Ewing | Jan 23, 1923 00:00 |
|
US-1442819-A // Ciphering machine // Parker Ralzemond D. // American Telephone & Telegraph | |||
| Version 1 (current) | 624 kB | Shaun Ewing | Jan 23, 1923 00:00 | US-1442819-A // Ciphering machine // Parker Ralzemond D. // American Telephone & Telegraph | ||||
| PDF File 1683716.pdf | 623 kB | Shaun Ewing | Sept 11, 1928 00:00 |
|
US-1683716-A // Antenna for radiotelegraphy // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 623 kB | Shaun Ewing | Sept 11, 1928 00:00 | US-1683716-A // Antenna for radiotelegraphy // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1457336.pdf | 623 kB | Shaun Ewing | Jun 05, 1923 00:00 |
|
US-1457336-A // Balancing circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 623 kB | Shaun Ewing | Jun 05, 1923 00:00 | US-1457336-A // Balancing circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1402322.pdf | 622 kB | Shaun Ewing | Jan 03, 1922 00:00 |
|
US-1402322-A // Anti-side-tone hand set // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 622 kB | Shaun Ewing | Jan 03, 1922 00:00 | US-1402322-A // Anti-side-tone hand set // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1598694.pdf | 622 kB | Shaun Ewing | Sept 07, 1926 00:00 |
|
US-1598694-A // Electrical regulator // Shackleton Samuel P. // American Telephone & Telegraph | |||
| Version 1 (current) | 622 kB | Shaun Ewing | Sept 07, 1926 00:00 | US-1598694-A // Electrical regulator // Shackleton Samuel P. // American Telephone & Telegraph | ||||
| PDF File 1748192.pdf | 622 kB | Shaun Ewing | Feb 25, 1930 00:00 |
|
US-1748192-A // Measurement of echoes // Satterthwaite Joshua P. ; Dingman James E. // American Telephone & Telegraph | |||
| Version 1 (current) | 622 kB | Shaun Ewing | Feb 25, 1930 00:00 | US-1748192-A // Measurement of echoes // Satterthwaite Joshua P. ; Dingman James E. // American Telephone & Telegraph | ||||
| PDF File 1663748.pdf | 621 kB | Shaun Ewing | Mar 27, 1928 00:00 |
|
US-1663748-A // Braid stripper for insulated wires // Bender Hugh D. ; Kent Robert John // American Telephone & Telegraph | |||
| Version 1 (current) | 621 kB | Shaun Ewing | Mar 27, 1928 00:00 | US-1663748-A // Braid stripper for insulated wires // Bender Hugh D. ; Kent Robert John // American Telephone & Telegraph | ||||
| PDF File 1773116.pdf | 620 kB | Shaun Ewing | Aug 19, 1930 00:00 |
|
US-1773116-A // Single-side-band system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Aug 19, 1930 00:00 | US-1773116-A // Single-side-band system // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1400583.pdf | 620 kB | Shaun Ewing | Dec 20, 1921 00:00 |
|
US-1400583-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 620 kB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400583-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1736783.pdf | 619 kB | Shaun Ewing | Nov 26, 1929 00:00 |
|
US-1736783-A // Measurement of electrical resistance // Gary Laurence A. ; Tasker Homer G. // American Telephone & Telegraph | |||
| Version 1 (current) | 619 kB | Shaun Ewing | Nov 26, 1929 00:00 | US-1736783-A // Measurement of electrical resistance // Gary Laurence A. ; Tasker Homer G. // American Telephone & Telegraph | ||||
| PDF File 1548873.pdf | 618 kB | Shaun Ewing | Aug 11, 1925 00:00 |
|
US-1548873-A // Telegraph signaling system // Fell John M. // American Telephone & Telegraph | |||
| Version 1 (current) | 618 kB | Shaun Ewing | Aug 11, 1925 00:00 | US-1548873-A // Telegraph signaling system // Fell John M. // American Telephone & Telegraph | ||||
| PDF File 1545558.pdf | 616 kB | Shaun Ewing | Jul 14, 1925 00:00 |
|
US-1545558-A // Tandem-operated echo suppressor // Hamilton Harold S. ; Wright Sumner B. // American Telephone & Telegraph | |||
| Version 1 (current) | 616 kB | Shaun Ewing | Jul 14, 1925 00:00 | US-1545558-A // Tandem-operated echo suppressor // Hamilton Harold S. ; Wright Sumner B. // American Telephone & Telegraph | ||||
| PDF File 1402202.pdf | 616 kB | Shaun Ewing | Jan 03, 1922 00:00 |
|
US-1402202-A // Ringing arrangement for multiplex circuits // Affel Herman A. ; Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 616 kB | Shaun Ewing | Jan 03, 1922 00:00 | US-1402202-A // Ringing arrangement for multiplex circuits // Affel Herman A. ; Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1431219.pdf | 615 kB | Shaun Ewing | Oct 10, 1922 00:00 |
|
US-1431219-A // Electron-tube repeater // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 615 kB | Shaun Ewing | Oct 10, 1922 00:00 | US-1431219-A // Electron-tube repeater // Crisson George // American Telephone & Telegraph |
