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 1753345.pdf | 651 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753345-A // Timing circuit // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 651 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753345-A // Timing circuit // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1753338.pdf | 935 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753338-A // Telephone-exchange system // Hague Alfred E. ; Peterson George H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 935 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753338-A // Telephone-exchange system // Hague Alfred E. ; Peterson George H. // Bell Telephone Labor Inc | ||||
| PDF File 1753337.pdf | 358 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753337-A // Adjustable inductance coil // Given Frederick J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 358 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753337-A // Adjustable inductance coil // Given Frederick J. // Bell Telephone Labor Inc | ||||
| PDF File 1753336.pdf | 542 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753336-A // Duplex telegraph system for loaded cables // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 542 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753336-A // Duplex telegraph system for loaded cables // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1753334.pdf | 1.24 MB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753334-A // Telephone system // Curley Thomas V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753334-A // Telephone system // Curley Thomas V. // Bell Telephone Labor Inc | ||||
| PDF File 1753331.pdf | 225 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753331-A // Constant-speed drive // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 225 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753331-A // Constant-speed drive // Clokey Allison A. // Bell Telephone Labor Inc | ||||
| PDF File 1753330.pdf | 231 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753330-A // Metering device // Bragg Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 231 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753330-A // Metering device // Bragg Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1753329.pdf | 864 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753329-A // Electric signaling system // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 864 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753329-A // Electric signaling system // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 1753325.pdf | 532 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753325-A // Retardation-coil system // Whittle Horace // Bell Telephone Labor Inc | |||
| Version 1 (current) | 532 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753325-A // Retardation-coil system // Whittle Horace // Bell Telephone Labor Inc | ||||
| PDF File 1753321.pdf | 755 kB | Shaun Ewing | Apr 08, 1930 00:00 |
|
US-1753321-A // Telephone-exchange system // Stokely Ray L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 755 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753321-A // Telephone-exchange system // Stokely Ray L. // Bell Telephone Labor Inc | ||||
| PDF File 1752550.pdf | 495 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752550-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 495 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752550-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1752486.pdf | 343 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752486-A // Magnetic device // Hartley Ralph V. L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 343 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752486-A // Magnetic device // Hartley Ralph V. L. // Bell Telephone Labor Inc | ||||
| PDF File 1752438.pdf | 338 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752438-A // Telephone system // Korn Franklin A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 338 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752438-A // Telephone system // Korn Franklin A. // Bell Telephone Labor Inc | ||||
| PDF File 1752436.pdf | 317 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752436-A // Telegraph repeating system // Kinkead Fullerton S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 317 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752436-A // Telegraph repeating system // Kinkead Fullerton S. // Bell Telephone Labor Inc | ||||
| PDF File 1752429.pdf | 236 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752429-A // Telephone set // Fowler Clarence B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 236 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752429-A // Telephone set // Fowler Clarence B. // Bell Telephone Labor Inc | ||||
| PDF File 1752413.pdf | 166 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752413-A // Signaling cable // Buckley Oliver E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 166 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752413-A // Signaling cable // Buckley Oliver E. // Bell Telephone Labor Inc | ||||
| PDF File 1752046.pdf | 731 kB | Shaun Ewing | Mar 25, 1930 00:00 |
|
US-1752046-A // Electric coupling circuits // Whittle Horace // Bell Telephone Labor Inc | |||
| Version 1 (current) | 731 kB | Shaun Ewing | Mar 25, 1930 00:00 | US-1752046-A // Electric coupling circuits // Whittle Horace // Bell Telephone Labor Inc | ||||
| PDF File 1751263.pdf | 224 kB | Shaun Ewing | Mar 18, 1930 00:00 |
|
US-1751263-A // Electrical switching system // Cesareo Orfeo // Bell Telephone Labor Inc | |||
| Version 1 (current) | 224 kB | Shaun Ewing | Mar 18, 1930 00:00 | US-1751263-A // Electrical switching system // Cesareo Orfeo // Bell Telephone Labor Inc | ||||
| PDF File 1751259.pdf | 369 kB | Shaun Ewing | Mar 18, 1930 00:00 |
|
US-1751259-A // Reating loaded submarine cables // Wentz Jesse F. // Bell Telephone Laboreatories I | |||
| Version 1 (current) | 369 kB | Shaun Ewing | Mar 18, 1930 00:00 | US-1751259-A // Reating loaded submarine cables // Wentz Jesse F. // Bell Telephone Laboreatories I | ||||
| PDF File 1751207.pdf | 582 kB | Shaun Ewing | Mar 18, 1930 00:00 |
|
US-1751207-A // Telephone trunk circuit // Johnson Herbert B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Mar 18, 1930 00:00 | US-1751207-A // Telephone trunk circuit // Johnson Herbert B. // Bell Telephone Labor Inc |
