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 1553435.pdf | 563 kB | Shaun Ewing | Sept 15, 1925 00:00 |
|
US-1553435-A // Means to control cross talk // Chapman Arthur G. ; Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 563 kB | Shaun Ewing | Sept 15, 1925 00:00 | US-1553435-A // Means to control cross talk // Chapman Arthur G. ; Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1553417.pdf | 1.27 MB | Shaun Ewing | Sept 15, 1925 00:00 |
|
US-1553417-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.27 MB | Shaun Ewing | Sept 15, 1925 00:00 | US-1553417-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1552499.pdf | 744 kB | Shaun Ewing | Sept 08, 1925 00:00 |
|
US-1552499-A // Means for measuring telegraph distortion // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 744 kB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552499-A // Means for measuring telegraph distortion // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1552470.pdf | 458 kB | Shaun Ewing | Sept 08, 1925 00:00 |
|
US-1552470-A // Means for measuring telegraph distortion // Cory Samuel I. // American Telephone & Telegraph | |||
| Version 1 (current) | 458 kB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552470-A // Means for measuring telegraph distortion // Cory Samuel I. // American Telephone & Telegraph | ||||
| PDF File 1552467.pdf | 563 kB | Shaun Ewing | Sept 08, 1925 00:00 |
|
US-1552467-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 563 kB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552467-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1552466.pdf | 846 kB | Shaun Ewing | Sept 08, 1925 00:00 |
|
US-1552466-A // Means and method for measuring balanced terminal capacities // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 846 kB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552466-A // Means and method for measuring balanced terminal capacities // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1552465.pdf | 1.16 MB | Shaun Ewing | Sept 08, 1925 00:00 |
|
US-1552465-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552465-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1551603.pdf | 262 kB | Shaun Ewing | Sept 01, 1925 00:00 |
|
US-1551603-A // Adjustable mold for making plastic forms // Melosi Hugo E. ; Gray Joseph H. // American Telephone & Telegraph | |||
| Version 1 (current) | 262 kB | Shaun Ewing | Sept 01, 1925 00:00 | US-1551603-A // Adjustable mold for making plastic forms // Melosi Hugo E. ; Gray Joseph H. // American Telephone & Telegraph | ||||
| PDF File 1551595.pdf | 558 kB | Shaun Ewing | Sept 01, 1925 00:00 |
|
US-1551595-A // Alternating-current printing-telegraph system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Sept 01, 1925 00:00 | US-1551595-A // Alternating-current printing-telegraph system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1550684.pdf | 430 kB | Shaun Ewing | Aug 25, 1925 00:00 |
|
US-1550684-A // Prevention of overloading in speech circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 430 kB | Shaun Ewing | Aug 25, 1925 00:00 | US-1550684-A // Prevention of overloading in speech circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1550660.pdf | 388 kB | Shaun Ewing | Aug 25, 1925 00:00 |
|
US-1550660-A // Prevention of overloading in speech circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 388 kB | Shaun Ewing | Aug 25, 1925 00:00 | US-1550660-A // Prevention of overloading in speech circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1550659.pdf | 374 kB | Shaun Ewing | Aug 25, 1925 00:00 |
|
US-1550659-A // Supervisory circuits for multiplex signaling // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 374 kB | Shaun Ewing | Aug 25, 1925 00:00 | US-1550659-A // Supervisory circuits for multiplex signaling // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1550658.pdf | 476 kB | Shaun Ewing | Aug 25, 1925 00:00 |
|
US-1550658-A // Ringing circuits for multiplex signaling // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Aug 25, 1925 00:00 | US-1550658-A // Ringing circuits for multiplex signaling // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1550657.pdf | 908 kB | Shaun Ewing | Aug 25, 1925 00:00 |
|
US-1550657-A // Ringing circuits for multiplex signaling // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 908 kB | Shaun Ewing | Aug 25, 1925 00:00 | US-1550657-A // Ringing circuits for multiplex signaling // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1549849.pdf | 872 kB | Shaun Ewing | Aug 18, 1925 00:00 |
|
US-1549849-A // Voice frequency carrier telegraph // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 872 kB | Shaun Ewing | Aug 18, 1925 00:00 | US-1549849-A // Voice frequency carrier telegraph // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1549821.pdf | 557 kB | Shaun Ewing | Aug 18, 1925 00:00 |
|
US-1549821-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Aug 18, 1925 00:00 | US-1549821-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1549817.pdf | 704 kB | Shaun Ewing | Aug 18, 1925 00:00 |
|
US-1549817-A // Trouble-indicating arrangement // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 704 kB | Shaun Ewing | Aug 18, 1925 00:00 | US-1549817-A // Trouble-indicating arrangement // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1549816.pdf | 609 kB | Shaun Ewing | Aug 18, 1925 00:00 |
|
US-1549816-A // Program-transmission over wires // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 609 kB | Shaun Ewing | Aug 18, 1925 00:00 | US-1549816-A // Program-transmission over wires // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1548895.pdf | 365 kB | Shaun Ewing | Aug 11, 1925 00:00 |
|
US-1548895-A // Electrical transmission of pictures // Mertz Pierre // American Telephone & Telegraph | |||
| Version 1 (current) | 365 kB | Shaun Ewing | Aug 11, 1925 00:00 | US-1548895-A // Electrical transmission of pictures // Mertz Pierre // American Telephone & Telegraph | ||||
| PDF File 1548878.pdf | 488 kB | Shaun Ewing | Aug 11, 1925 00:00 |
|
US-1548878-A // Electrical signaling system // Gannett Danforth K. ; Kirkwood Maclean // American Telephone & Telegraph | |||
| Version 1 (current) | 488 kB | Shaun Ewing | Aug 11, 1925 00:00 | US-1548878-A // Electrical signaling system // Gannett Danforth K. ; Kirkwood Maclean // American Telephone & Telegraph |
