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 2108219.pdf | 557 kB | Shaun Ewing | Feb 15, 1938 00:00 |
|
US-2108219-A // Gas tube circuits // Swart Leland K. // American Telephone & Telegraph | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Feb 15, 1938 00:00 | US-2108219-A // Gas tube circuits // Swart Leland K. // American Telephone & Telegraph | ||||
| PDF File 2108974.pdf | 1.14 MB | Shaun Ewing | Feb 22, 1938 00:00 |
|
US-2108974-A // Two-way signaling system // Schott Lionel // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Feb 22, 1938 00:00 | US-2108974-A // Two-way signaling system // Schott Lionel // American Telephone & Telegraph | ||||
| PDF File 2109026.pdf | 688 kB | Shaun Ewing | Feb 22, 1938 00:00 |
|
US-2109026-A // Telegraph repeating system // Mccann Thomas A. // American Telephone & Telegraph | |||
| Version 1 (current) | 688 kB | Shaun Ewing | Feb 22, 1938 00:00 | US-2109026-A // Telegraph repeating system // Mccann Thomas A. // American Telephone & Telegraph | ||||
| PDF File 2109557.pdf | 667 kB | Shaun Ewing | Mar 01, 1938 00:00 |
|
US-2109557-A // Signal transmission system // Taylor Charles Chance // American Telephone & Telegraph | |||
| Version 1 (current) | 667 kB | Shaun Ewing | Mar 01, 1938 00:00 | US-2109557-A // Signal transmission system // Taylor Charles Chance // American Telephone & Telegraph | ||||
| PDF File 2109562.pdf | 616 kB | Shaun Ewing | Mar 01, 1938 00:00 |
|
US-2109562-A // Transmission system // Bagnall Vernon Barnard // American Telephone & Telegraph | |||
| Version 1 (current) | 616 kB | Shaun Ewing | Mar 01, 1938 00:00 | US-2109562-A // Transmission system // Bagnall Vernon Barnard // American Telephone & Telegraph | ||||
| PDF File 2110260.pdf | 1.05 MB | Shaun Ewing | Mar 08, 1938 00:00 |
|
US-2110260-A // Telegraph system // Burgess Montague Stephen ; Clark Alva Benson // American Telephone & Telegraph | |||
| Version 1 (current) | 1.05 MB | Shaun Ewing | Mar 08, 1938 00:00 | US-2110260-A // Telegraph system // Burgess Montague Stephen ; Clark Alva Benson // American Telephone & Telegraph | ||||
| PDF File 2110536.pdf | 410 kB | Shaun Ewing | Mar 08, 1938 00:00 |
|
US-2110536-A // Electrical protection apparatus // Swart Leland Kasson // American Telephone & Telegraph | |||
| Version 1 (current) | 410 kB | Shaun Ewing | Mar 08, 1938 00:00 | US-2110536-A // Electrical protection apparatus // Swart Leland Kasson // American Telephone & Telegraph | ||||
| PDF File 2110932.pdf | 257 kB | Shaun Ewing | Mar 15, 1938 00:00 |
|
US-2110932-A // Signaling system // Edwards William Hopple // American Telephone & Telegraph | |||
| Version 1 (current) | 257 kB | Shaun Ewing | Mar 15, 1938 00:00 | US-2110932-A // Signaling system // Edwards William Hopple // American Telephone & Telegraph | ||||
| PDF File 2111023.pdf | 779 kB | Shaun Ewing | Mar 15, 1938 00:00 |
|
US-2111023-A // Noise and cross-talk reduction in telephone communication circuits // Dixon John Tillotson // American Telephone & Telegraph | |||
| Version 1 (current) | 779 kB | Shaun Ewing | Mar 15, 1938 00:00 | US-2111023-A // Noise and cross-talk reduction in telephone communication circuits // Dixon John Tillotson // American Telephone & Telegraph | ||||
| PDF File 2111685.pdf | 1.09 MB | Shaun Ewing | Mar 22, 1938 00:00 |
|
US-2111685-A // Telegraph broadcasting system // Walker Charles Robert // American Telephone & Telegraph | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Mar 22, 1938 00:00 | US-2111685-A // Telegraph broadcasting system // Walker Charles Robert // American Telephone & Telegraph | ||||
| PDF File 2112327.pdf | 269 kB | Shaun Ewing | Mar 29, 1938 00:00 |
|
US-2112327-A // Gas-filled tube // Bodle David W. // American Telephone & Telegraph | |||
| Version 1 (current) | 269 kB | Shaun Ewing | Mar 29, 1938 00:00 | US-2112327-A // Gas-filled tube // Bodle David W. // American Telephone & Telegraph | ||||
| PDF File 2112328.pdf | 286 kB | Shaun Ewing | Mar 29, 1938 00:00 |
|
US-2112328-A // Gas-filled tube // Bodle David W. // American Telephone & Telegraph | |||
| Version 1 (current) | 286 kB | Shaun Ewing | Mar 29, 1938 00:00 | US-2112328-A // Gas-filled tube // Bodle David W. // American Telephone & Telegraph | ||||
| PDF File 2113708.pdf | 191 kB | Shaun Ewing | Apr 12, 1938 00:00 |
|
US-2113708-A // Transmission system // Parrott John Angell // American Telephone & Telegraph | |||
| Version 1 (current) | 191 kB | Shaun Ewing | Apr 12, 1938 00:00 | US-2113708-A // Transmission system // Parrott John Angell // American Telephone & Telegraph | ||||
| PDF File 2113713.pdf | 334 kB | Shaun Ewing | Apr 12, 1938 00:00 |
|
US-2113713-A // Warning device for manholes // Slocum Harvey Francis // American Telephone & Telegraph | |||
| Version 1 (current) | 334 kB | Shaun Ewing | Apr 12, 1938 00:00 | US-2113713-A // Warning device for manholes // Slocum Harvey Francis // American Telephone & Telegraph | ||||
| PDF File 2115894.pdf | 678 kB | Shaun Ewing | May 03, 1938 00:00 |
|
US-2115894-A // Apparatus and method for the electrical transmission of pictures // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 678 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115894-A // Apparatus and method for the electrical transmission of pictures // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 2115917.pdf | 324 kB | Shaun Ewing | May 03, 1938 00:00 |
|
US-2115917-A // Picture transmitting system // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 324 kB | Shaun Ewing | May 03, 1938 00:00 | US-2115917-A // Picture transmitting system // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 2117052.pdf | 648 kB | Shaun Ewing | May 10, 1938 00:00 |
|
US-2117052-A // Telegraph tape comparator // Bailey Austin ; Mccann Thomas Addison // American Telephone & Telegraph | |||
| Version 1 (current) | 648 kB | Shaun Ewing | May 10, 1938 00:00 | US-2117052-A // Telegraph tape comparator // Bailey Austin ; Mccann Thomas Addison // American Telephone & Telegraph | ||||
| PDF File 2118471.pdf | 654 kB | Shaun Ewing | May 24, 1938 00:00 |
|
US-2118471-A // Electrical transmission system // Monk Newton ; Tidd Warren H. // American Telephone & Telegraph | |||
| Version 1 (current) | 654 kB | Shaun Ewing | May 24, 1938 00:00 | US-2118471-A // Electrical transmission system // Monk Newton ; Tidd Warren H. // American Telephone & Telegraph | ||||
| PDF File 2119203.pdf | 538 kB | Shaun Ewing | May 31, 1938 00:00 |
|
US-2119203-A // Combined form and carbon sheet holder // Dencklau Karl R. // American Telephone & Telegraph | |||
| Version 1 (current) | 538 kB | Shaun Ewing | May 31, 1938 00:00 | US-2119203-A // Combined form and carbon sheet holder // Dencklau Karl R. // American Telephone & Telegraph | ||||
| PDF File 2120235.pdf | 913 kB | Shaun Ewing | Jun 14, 1938 00:00 |
|
US-2120235-A // Teletypewriter system // Beattie James Francis ; Cunningham Harold Jerome ; Roycroft Walter Richard // Western Electric Co ; American Telephone & Telegraph | |||
| Version 1 (current) | 913 kB | Shaun Ewing | Jun 14, 1938 00:00 | US-2120235-A // Teletypewriter system // Beattie James Francis ; Cunningham Harold Jerome ; Roycroft Walter Richard // Western Electric Co ; American Telephone & Telegraph |
