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 1569936.pdf | 830 kB | Shaun Ewing | Jan 19, 1926 00:00 |
|
US-1569936-A // Machine-switching system // Land Edmund // American Telephone & Telegraph | |||
| Version 1 (current) | 830 kB | Shaun Ewing | Jan 19, 1926 00:00 | US-1569936-A // Machine-switching system // Land Edmund // American Telephone & Telegraph | ||||
| PDF File 1569905.pdf | 351 kB | Shaun Ewing | Jan 19, 1926 00:00 |
|
US-1569905-A // Method and apparatus for neutralizing radiointerference on wire lines // Affel Herman A. ; Ilgenfritz Lester M. // American Telephone & Telegraph | |||
| Version 1 (current) | 351 kB | Shaun Ewing | Jan 19, 1926 00:00 | US-1569905-A // Method and apparatus for neutralizing radiointerference on wire lines // Affel Herman A. ; Ilgenfritz Lester M. // American Telephone & Telegraph | ||||
| PDF File 1569898.pdf | 510 kB | Shaun Ewing | Jan 19, 1926 00:00 |
|
US-1569898-A // Signaling system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 510 kB | Shaun Ewing | Jan 19, 1926 00:00 | US-1569898-A // Signaling system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1569874.pdf | 237 kB | Shaun Ewing | Jan 19, 1926 00:00 |
|
US-1569874-A // Indicating means for calling dials // Newby Neal D. // American Telephone & Telegraph | |||
| Version 1 (current) | 237 kB | Shaun Ewing | Jan 19, 1926 00:00 | US-1569874-A // Indicating means for calling dials // Newby Neal D. // American Telephone & Telegraph | ||||
| PDF File 1569055.pdf | 274 kB | Shaun Ewing | Jan 12, 1926 00:00 |
|
US-1569055-A // Telegraph circuit // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 274 kB | Shaun Ewing | Jan 12, 1926 00:00 | US-1569055-A // Telegraph circuit // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1569034.pdf | 592 kB | Shaun Ewing | Jan 12, 1926 00:00 |
|
US-1569034-A // Machine-switching telephone-exchange system // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 592 kB | Shaun Ewing | Jan 12, 1926 00:00 | US-1569034-A // Machine-switching telephone-exchange system // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1569001.pdf | 746 kB | Shaun Ewing | Jan 12, 1926 00:00 |
|
US-1569001-A // Electrical measuring apparatus // Clark Alva Benson ; Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 746 kB | Shaun Ewing | Jan 12, 1926 00:00 | US-1569001-A // Electrical measuring apparatus // Clark Alva Benson ; Crisson George // American Telephone & Telegraph | ||||
| PDF File 1568996.pdf | 933 kB | Shaun Ewing | Jan 12, 1926 00:00 |
|
US-1568996-A // Electrical measuring apparatus // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 933 kB | Shaun Ewing | Jan 12, 1926 00:00 | US-1568996-A // Electrical measuring apparatus // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1568991.pdf | 582 kB | Shaun Ewing | Jan 12, 1926 00:00 |
|
US-1568991-A // Ciphering and deciphering device // Morehouse Lyman F. // American Telephone & Telegraph | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Jan 12, 1926 00:00 | US-1568991-A // Ciphering and deciphering device // Morehouse Lyman F. // American Telephone & Telegraph | ||||
| PDF File 1568891.pdf | 625 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568891-A // Repeater circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 625 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568891-A // Repeater circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1568861.pdf | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568861-A // Repeater circuit // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568861-A // Repeater circuit // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1568145.pdf | 432 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568145-A // Frequency filter for electric currents // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 432 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568145-A // Frequency filter for electric currents // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1568144.pdf | 459 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568144-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568144-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1568143.pdf | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568143-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568143-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1568142.pdf | 486 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568142-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 486 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568142-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1568141.pdf | 527 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568141-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 527 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568141-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1567208.pdf | 918 kB | Shaun Ewing | Dec 29, 1925 00:00 |
|
US-1567208-A // Program transmission over wires // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | |||
| Version 1 (current) | 918 kB | Shaun Ewing | Dec 29, 1925 00:00 | US-1567208-A // Program transmission over wires // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | ||||
| PDF File 1567204.pdf | 341 kB | Shaun Ewing | Dec 29, 1925 00:00 |
|
US-1567204-A // Radio transmitting system // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 341 kB | Shaun Ewing | Dec 29, 1925 00:00 | US-1567204-A // Radio transmitting system // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1567167.pdf | 781 kB | Shaun Ewing | Dec 29, 1925 00:00 |
|
US-1567167-A // Four-wire repeater circuits // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 781 kB | Shaun Ewing | Dec 29, 1925 00:00 | US-1567167-A // Four-wire repeater circuits // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1567128.pdf | 268 kB | Shaun Ewing | Dec 29, 1925 00:00 |
|
US-1567128-A // Wire program-transmission system // Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 268 kB | Shaun Ewing | Dec 29, 1925 00:00 | US-1567128-A // Wire program-transmission system // Fetter Charles H. // American Telephone & Telegraph |
