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 1397093.pdf | 952 kB | Shaun Ewing | Nov 15, 1921 00:00 |
|
US-1397093-A // Radiorepeating system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 952 kB | Shaun Ewing | Nov 15, 1921 00:00 | US-1397093-A // Radiorepeating system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1397228.pdf | 467 kB | Shaun Ewing | Nov 15, 1921 00:00 |
|
US-1397228-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 467 kB | Shaun Ewing | Nov 15, 1921 00:00 | US-1397228-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1397975.pdf | 444 kB | Shaun Ewing | Nov 22, 1921 00:00 |
|
US-1397975-A // Electrical testing system // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 444 kB | Shaun Ewing | Nov 22, 1921 00:00 | US-1397975-A // Electrical testing system // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1397991.pdf | 580 kB | Shaun Ewing | Nov 22, 1921 00:00 |
|
US-1397991-A // Message-registering system // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 580 kB | Shaun Ewing | Nov 22, 1921 00:00 | US-1397991-A // Message-registering system // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1398266.pdf | 476 kB | Shaun Ewing | Nov 29, 1921 00:00 |
|
US-1398266-A // Electrical indicating and measuring device // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Nov 29, 1921 00:00 | US-1398266-A // Electrical indicating and measuring device // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1398287.pdf | 284 kB | Shaun Ewing | Nov 29, 1921 00:00 |
|
US-1398287-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Nov 29, 1921 00:00 | US-1398287-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1399226.pdf | 413 kB | Shaun Ewing | Dec 06, 1921 00:00 |
|
US-1399226-A // Electrothermal relay // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 413 kB | Shaun Ewing | Dec 06, 1921 00:00 | US-1399226-A // Electrothermal relay // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1399695.pdf | 796 kB | Shaun Ewing | Dec 06, 1921 00:00 |
|
US-1399695-A // Electrical testing-circuits // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 796 kB | Shaun Ewing | Dec 06, 1921 00:00 | US-1399695-A // Electrical testing-circuits // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1400189.pdf | 913 kB | Shaun Ewing | Dec 13, 1921 00:00 |
|
US-1400189-A // Means for controlling repeater-circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Dec 13, 1921 00:00 | US-1400189-A // Means for controlling repeater-circuits // Toomey John F. // 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 1400732.pdf | 1.13 MB | Shaun Ewing | Dec 20, 1921 00:00 |
|
US-1400732-A // Signaling system // Demarest Charles S. ; Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400732-A // Signaling system // Demarest Charles S. ; Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1400776.pdf | 340 kB | Shaun Ewing | Dec 20, 1921 00:00 |
|
US-1400776-A // Deflection-dynamometer // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 340 kB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400776-A // Deflection-dynamometer // Smith Temple C. // 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 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 1402991.pdf | 342 kB | Shaun Ewing | Jan 10, 1922 00:00 |
|
US-1402991-A // Carrier telegraph circuit // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 342 kB | Shaun Ewing | Jan 10, 1922 00:00 | US-1402991-A // Carrier telegraph circuit // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1403544.pdf | 263 kB | Shaun Ewing | Jan 17, 1922 00:00 |
|
US-1403544-A // Transmission equalization arrangement // Darrow Wirt E. // American Telephone & Telegraph | |||
| Version 1 (current) | 263 kB | Shaun Ewing | Jan 17, 1922 00:00 | US-1403544-A // Transmission equalization arrangement // Darrow Wirt E. // American Telephone & Telegraph | ||||
| PDF File 1403626.pdf | 345 kB | Shaun Ewing | Jan 17, 1922 00:00 |
|
US-1403626-A // Automatic switch for controlling motor-driven automatic machines // Potts Louis M. // American Telephone & Telegraph | |||
| Version 1 (current) | 345 kB | Shaun Ewing | Jan 17, 1922 00:00 | US-1403626-A // Automatic switch for controlling motor-driven automatic machines // Potts Louis M. // American Telephone & Telegraph | ||||
| PDF File 1403841.pdf | 926 kB | Shaun Ewing | Jan 17, 1922 00:00 |
|
US-1403841-A // Frequency-control system // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 926 kB | Shaun Ewing | Jan 17, 1922 00:00 | US-1403841-A // Frequency-control system // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1404799.pdf | 454 kB | Shaun Ewing | Jan 31, 1922 00:00 |
|
US-1404799-A // Current-supply circuit for vacuum bulbs // Shackleton Samuel P. // American Telephone & Telegraph | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Jan 31, 1922 00:00 | US-1404799-A // Current-supply circuit for vacuum bulbs // Shackleton Samuel P. // American Telephone & Telegraph | ||||
| PDF File 1405428.pdf | 171 kB | Shaun Ewing | Feb 07, 1922 00:00 |
|
US-1405428-A // Signal-transmitting system // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 171 kB | Shaun Ewing | Feb 07, 1922 00:00 | US-1405428-A // Signal-transmitting system // Osborne Harold S. // American Telephone & Telegraph |
