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 1414391.pdf | 553 kB | Shaun Ewing | May 02, 1922 00:00 |
|
US-1414391-A // Means for and method of testing unbalance // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | May 02, 1922 00:00 | US-1414391-A // Means for and method of testing unbalance // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1414397.pdf | 495 kB | Shaun Ewing | May 02, 1922 00:00 |
|
US-1414397-A // Testing apparatus // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 495 kB | Shaun Ewing | May 02, 1922 00:00 | US-1414397-A // Testing apparatus // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1415098.pdf | 305 kB | Shaun Ewing | May 09, 1922 00:00 |
|
US-1415098-A // Heater for soldering coppers // Klein Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 305 kB | Shaun Ewing | May 09, 1922 00:00 | US-1415098-A // Heater for soldering coppers // Klein Charles H. // American Telephone & Telegraph | ||||
| PDF File 1415106.pdf | 638 kB | Shaun Ewing | May 09, 1922 00:00 |
|
US-1415106-A // Ciphering device // Morehouse Lyman F. // American Telephone & Telegraph | |||
| Version 1 (current) | 638 kB | Shaun Ewing | May 09, 1922 00:00 | US-1415106-A // Ciphering device // Morehouse Lyman F. // American Telephone & Telegraph | ||||
| PDF File 1415868.pdf | 733 kB | Shaun Ewing | May 16, 1922 00:00 |
|
US-1415868-A // Transmission-equalization arrangement // Darrow Leo H. // American Telephone & Telegraph | |||
| Version 1 (current) | 733 kB | Shaun Ewing | May 16, 1922 00:00 | US-1415868-A // Transmission-equalization arrangement // Darrow Leo H. // American Telephone & Telegraph | ||||
| PDF File 1415907.pdf | 797 kB | Shaun Ewing | May 16, 1922 00:00 |
|
US-1415907-A // Means for equalizing transmission over lines of different electrical charactrristics // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 797 kB | Shaun Ewing | May 16, 1922 00:00 | US-1415907-A // Means for equalizing transmission over lines of different electrical charactrristics // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1416724.pdf | 453 kB | Shaun Ewing | May 23, 1922 00:00 |
|
US-1416724-A // Telephone circuits // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 453 kB | Shaun Ewing | May 23, 1922 00:00 | US-1416724-A // Telephone circuits // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1416765.pdf | 1.95 MB | Shaun Ewing | May 23, 1922 00:00 |
|
US-1416765-A // Ciphering device // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | May 23, 1922 00:00 | US-1416765-A // Ciphering device // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1418285.pdf | 454 kB | Shaun Ewing | Jun 06, 1922 00:00 |
|
US-1418285-A // Translating circuit // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 454 kB | Shaun Ewing | Jun 06, 1922 00:00 | US-1418285-A // Translating circuit // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1419409.pdf | 2.36 MB | Shaun Ewing | Jun 13, 1922 00:00 |
|
US-1419409-A // System of telegraph distribution // Potts Louis M. // American Telephone ; Telegraph Company | |||
| Version 1 (current) | 2.36 MB | Shaun Ewing | Jun 13, 1922 00:00 | US-1419409-A // System of telegraph distribution // Potts Louis M. // American Telephone ; Telegraph Company | ||||
| PDF File 1419673.pdf | 549 kB | Shaun Ewing | Jun 13, 1922 00:00 |
|
US-1419673-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Jun 13, 1922 00:00 | US-1419673-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1419674.pdf | 391 kB | Shaun Ewing | Jun 13, 1922 00:00 |
|
US-1419674-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Jun 13, 1922 00:00 | US-1419674-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1420487.pdf | 141 kB | Shaun Ewing | Jun 20, 1922 00:00 |
|
US-1420487-A // Hook // Kent Robert J. // American Telephone & Telegraph | |||
| Version 1 (current) | 141 kB | Shaun Ewing | Jun 20, 1922 00:00 | US-1420487-A // Hook // Kent Robert J. // American Telephone & Telegraph | ||||
| PDF File 1421702.pdf | 424 kB | Shaun Ewing | Jul 04, 1922 00:00 |
|
US-1421702-A // Testing apparatus // Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Jul 04, 1922 00:00 | US-1421702-A // Testing apparatus // Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1422470.pdf | 527 kB | Shaun Ewing | Jul 11, 1922 00:00 |
|
US-1422470-A // Inductive-interference-suppression device // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 527 kB | Shaun Ewing | Jul 11, 1922 00:00 | US-1422470-A // Inductive-interference-suppression device // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1423518.pdf | 304 kB | Shaun Ewing | Jul 25, 1922 00:00 |
|
US-1423518-A // Frequency regulator // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 304 kB | Shaun Ewing | Jul 25, 1922 00:00 | US-1423518-A // Frequency regulator // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1426669.pdf | 584 kB | Shaun Ewing | Aug 22, 1922 00:00 |
|
US-1426669-A // Ciphering device // Pierce Ralph E. // American Telephone & Telegraph | |||
| Version 1 (current) | 584 kB | Shaun Ewing | Aug 22, 1922 00:00 | US-1426669-A // Ciphering device // Pierce Ralph E. // American Telephone & Telegraph | ||||
| PDF File 1427695.pdf | 813 kB | Shaun Ewing | Aug 29, 1922 00:00 |
|
US-1427695-A // Switchboard call-signal apparatus and circuits // Morris Robert W. // American Telephone & Telegraph | |||
| Version 1 (current) | 813 kB | Shaun Ewing | Aug 29, 1922 00:00 | US-1427695-A // Switchboard call-signal apparatus and circuits // Morris Robert W. // American Telephone & Telegraph | ||||
| PDF File 1427725.pdf | 696 kB | Shaun Ewing | Aug 29, 1922 00:00 |
|
US-1427725-A // Switchboard call-signal apparatus and circuits // Cooper Lester W. // American Telephone & Telegraph | |||
| Version 1 (current) | 696 kB | Shaun Ewing | Aug 29, 1922 00:00 | US-1427725-A // Switchboard call-signal apparatus and circuits // Cooper Lester W. // American Telephone & Telegraph | ||||
| PDF File 1427923.pdf | 646 kB | Shaun Ewing | Sept 05, 1922 00:00 |
|
US-1427923-A // Telephone-call circuits // Toomey John F. ; Loynes Owen H. // American Telephone & Telegraph | |||
| Version 1 (current) | 646 kB | Shaun Ewing | Sept 05, 1922 00:00 | US-1427923-A // Telephone-call circuits // Toomey John F. ; Loynes Owen H. // American Telephone & Telegraph |
