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 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 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 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 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 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 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 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 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 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 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 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 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 1413753.pdf | 157 kB | Shaun Ewing | Apr 25, 1922 00:00 |
|
US-1413753-A // Receiving device for signaling systems // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 157 kB | Shaun Ewing | Apr 25, 1922 00:00 | US-1413753-A // Receiving device for signaling systems // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1413708.pdf | 2.01 MB | Shaun Ewing | Apr 25, 1922 00:00 |
|
US-1413708-A // Signaling circuits for toll lines // Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 2.01 MB | Shaun Ewing | Apr 25, 1922 00:00 | US-1413708-A // Signaling circuits for toll lines // Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1412908.pdf | 461 kB | Shaun Ewing | Apr 18, 1922 00:00 |
|
US-1412908-A // Synchronizing system // Dyile Marl B. Van // American Telephone And Telecra | |||
| Version 1 (current) | 461 kB | Shaun Ewing | Apr 18, 1922 00:00 | US-1412908-A // Synchronizing system // Dyile Marl B. Van // American Telephone And Telecra | ||||
| PDF File 1412853.pdf | 384 kB | Shaun Ewing | Apr 18, 1922 00:00 |
|
US-1412853-A // Synchronizing system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 384 kB | Shaun Ewing | Apr 18, 1922 00:00 | US-1412853-A // Synchronizing system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1412490.pdf | 1.32 MB | Shaun Ewing | Apr 11, 1922 00:00 |
|
US-1412490-A // Signaling system // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Apr 11, 1922 00:00 | US-1412490-A // Signaling system // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1412458.pdf | 753 kB | Shaun Ewing | Apr 11, 1922 00:00 |
|
US-1412458-A // Message-registering system // Darrow Leo H. // American Telephone & Telegraph | |||
| Version 1 (current) | 753 kB | Shaun Ewing | Apr 11, 1922 00:00 | US-1412458-A // Message-registering system // Darrow Leo H. // American Telephone & Telegraph | ||||
| PDF File 1411385.pdf | 675 kB | Shaun Ewing | Apr 04, 1922 00:00 |
|
US-1411385-A // Signaling apparatus // Shackleton Samuel P. // American Telephone & Telegraph | |||
| Version 1 (current) | 675 kB | Shaun Ewing | Apr 04, 1922 00:00 | US-1411385-A // Signaling apparatus // Shackleton Samuel P. // American Telephone & Telegraph | ||||
| PDF File 1410890.pdf | 574 kB | Shaun Ewing | Mar 28, 1922 00:00 |
|
US-1410890-A // Method of and means for modulating carrier oscillations // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 574 kB | Shaun Ewing | Mar 28, 1922 00:00 | US-1410890-A // Method of and means for modulating carrier oscillations // Carson John R. // American Telephone & Telegraph |
