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 1657498.pdf | 832 kB | Shaun Ewing | Jan 31, 1928 00:00 |
|
US-1657498-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | |||
| Version 1 (current) | 832 kB | Shaun Ewing | Jan 31, 1928 00:00 | US-1657498-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | ||||
| PDF File 1657462.pdf | 414 kB | Shaun Ewing | Jan 31, 1928 00:00 |
|
US-1657462-A // Nonsinging reamplifying circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 414 kB | Shaun Ewing | Jan 31, 1928 00:00 | US-1657462-A // Nonsinging reamplifying circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1657451.pdf | 782 kB | Shaun Ewing | Jan 31, 1928 00:00 |
|
US-1657451-A // Nonsinging reamplifying circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 782 kB | Shaun Ewing | Jan 31, 1928 00:00 | US-1657451-A // Nonsinging reamplifying circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1656987.pdf | 240 kB | Shaun Ewing | Jan 24, 1928 00:00 |
|
US-1656987-A // Ultrahigh-frequency generator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 240 kB | Shaun Ewing | Jan 24, 1928 00:00 | US-1656987-A // Ultrahigh-frequency generator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1656957.pdf | 229 kB | Shaun Ewing | Jan 24, 1928 00:00 |
|
US-1656957-A // Glow-discharge valve // Schroter Fritz // American Telephone & Telegraph | |||
| Version 1 (current) | 229 kB | Shaun Ewing | Jan 24, 1928 00:00 | US-1656957-A // Glow-discharge valve // Schroter Fritz // American Telephone & Telegraph | ||||
| PDF File 1656956.pdf | 532 kB | Shaun Ewing | Jan 24, 1928 00:00 |
|
US-1656956-A // Electric vacuum valve tubb // Schroter Fritz // American Telephone & Telegraph | |||
| Version 1 (current) | 532 kB | Shaun Ewing | Jan 24, 1928 00:00 | US-1656956-A // Electric vacuum valve tubb // Schroter Fritz // American Telephone & Telegraph | ||||
| PDF File 1656250.pdf | 353 kB | Shaun Ewing | Jan 17, 1928 00:00 |
|
US-1656250-A // Alternating-current relay // Thompson Elmer O. ; Grimes David ; Fisher Henry C. // American Telephone & Telegraph | |||
| Version 1 (current) | 353 kB | Shaun Ewing | Jan 17, 1928 00:00 | US-1656250-A // Alternating-current relay // Thompson Elmer O. ; Grimes David ; Fisher Henry C. // American Telephone & Telegraph | ||||
| PDF File 1656226.pdf | 287 kB | Shaun Ewing | Jan 17, 1928 00:00 |
|
US-1656226-A // Wire clamp // Palm Samuel M. ; Putnam Howard P. // American Telephone & Telegraph | |||
| Version 1 (current) | 287 kB | Shaun Ewing | Jan 17, 1928 00:00 | US-1656226-A // Wire clamp // Palm Samuel M. ; Putnam Howard P. // American Telephone & Telegraph | ||||
| PDF File 1655448.pdf | 390 kB | Shaun Ewing | Jan 10, 1928 00:00 |
|
US-1655448-A // Printing telegraph system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Jan 10, 1928 00:00 | US-1655448-A // Printing telegraph system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1655420.pdf | 546 kB | Shaun Ewing | Jan 10, 1928 00:00 |
|
US-1655420-A // Intermediate telegraph station // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 546 kB | Shaun Ewing | Jan 10, 1928 00:00 | US-1655420-A // Intermediate telegraph station // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1654657.pdf | 529 kB | Shaun Ewing | Jan 03, 1928 00:00 |
|
US-1654657-A // Cable terminal // Matthews Edgar M. // American Telephone & Telegraph | |||
| Version 1 (current) | 529 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1654657-A // Cable terminal // Matthews Edgar M. // American Telephone & Telegraph | ||||
| PDF File 1654645.pdf | 328 kB | Shaun Ewing | Jan 03, 1928 00:00 |
|
US-1654645-A // Recording system // Green Irving Walter // American Telephone & Telegraph | |||
| Version 1 (current) | 328 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1654645-A // Recording system // Green Irving Walter // American Telephone & Telegraph | ||||
| PDF File 1654633.pdf | 361 kB | Shaun Ewing | Jan 03, 1928 00:00 |
|
US-1654633-A // Recording system // Bisbee Frederick Carleton // American Telephone & Telegraph | |||
| Version 1 (current) | 361 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1654633-A // Recording system // Bisbee Frederick Carleton // American Telephone & Telegraph | ||||
| PDF File 1653738.pdf | 470 kB | Shaun Ewing | Dec 27, 1927 00:00 |
|
US-1653738-A // Suppression of echoes and singing in four-wire circuits // Silent Harold C. // American Telephone & Telegraph | |||
| Version 1 (current) | 470 kB | Shaun Ewing | Dec 27, 1927 00:00 | US-1653738-A // Suppression of echoes and singing in four-wire circuits // Silent Harold C. // American Telephone & Telegraph | ||||
| PDF File 1653736.pdf | 280 kB | Shaun Ewing | Dec 27, 1927 00:00 |
|
US-1653736-A // Impulse-registering device // Shackleton Samuel P. ; Schott John T. // American Telephone & Telegraph | |||
| Version 1 (current) | 280 kB | Shaun Ewing | Dec 27, 1927 00:00 | US-1653736-A // Impulse-registering device // Shackleton Samuel P. ; Schott John T. // American Telephone & Telegraph | ||||
| PDF File 1653694.pdf | 171 kB | Shaun Ewing | Dec 27, 1927 00:00 |
|
US-1653694-A // Apparatus and method for measuring transmitted light // Branson David E. // American Telephone & Telegraph | |||
| Version 1 (current) | 171 kB | Shaun Ewing | Dec 27, 1927 00:00 | US-1653694-A // Apparatus and method for measuring transmitted light // Branson David E. // American Telephone & Telegraph | ||||
| PDF File 1653089.pdf | 467 kB | Shaun Ewing | Dec 20, 1927 00:00 |
|
US-1653089-A // Telegraph system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 467 kB | Shaun Ewing | Dec 20, 1927 00:00 | US-1653089-A // Telegraph system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1653082.pdf | 481 kB | Shaun Ewing | Dec 20, 1927 00:00 |
|
US-1653082-A // Volume indicator // Bailey Austin // American Telephone & Telegraph | |||
| Version 1 (current) | 481 kB | Shaun Ewing | Dec 20, 1927 00:00 | US-1653082-A // Volume indicator // Bailey Austin // American Telephone & Telegraph | ||||
| PDF File 1653074.pdf | 539 kB | Shaun Ewing | Dec 20, 1927 00:00 |
|
US-1653074-A // Transmission of pictures by electricity // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 539 kB | Shaun Ewing | Dec 20, 1927 00:00 | US-1653074-A // Transmission of pictures by electricity // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1652242.pdf | 421 kB | Shaun Ewing | Dec 13, 1927 00:00 |
|
US-1652242-A // Telegraph repeater // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Dec 13, 1927 00:00 | US-1652242-A // Telegraph repeater // Herman Joseph // American Telephone & Telegraph |
