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 1647192.pdf | 583 kB | Shaun Ewing | Nov 01, 1927 00:00 |
|
US-1647192-A // Apparatus for controlling the frequency of an alternating current // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 583 kB | Shaun Ewing | Nov 01, 1927 00:00 | US-1647192-A // Apparatus for controlling the frequency of an alternating current // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1646444.pdf | 411 kB | Shaun Ewing | Oct 25, 1927 00:00 |
|
US-1646444-A // Protection circuits // Carpe Allen ; Deardorff Ralph W. // American Telephone & Telegraph | |||
| Version 1 (current) | 411 kB | Shaun Ewing | Oct 25, 1927 00:00 | US-1646444-A // Protection circuits // Carpe Allen ; Deardorff Ralph W. // American Telephone & Telegraph | ||||
| PDF File 1646439.pdf | 539 kB | Shaun Ewing | Oct 25, 1927 00:00 |
|
US-1646439-A // Harmonic generator // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 539 kB | Shaun Ewing | Oct 25, 1927 00:00 | US-1646439-A // Harmonic generator // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1646438.pdf | 497 kB | Shaun Ewing | Oct 25, 1927 00:00 |
|
US-1646438-A // Harmonic generator // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 497 kB | Shaun Ewing | Oct 25, 1927 00:00 | US-1646438-A // Harmonic generator // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1645618.pdf | 661 kB | Shaun Ewing | Oct 18, 1927 00:00 |
|
US-1645618-A // Method and apparatus for measuring transmission delay // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 661 kB | Shaun Ewing | Oct 18, 1927 00:00 | US-1645618-A // Method and apparatus for measuring transmission delay // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1645607.pdf | 710 kB | Shaun Ewing | Oct 18, 1927 00:00 |
|
US-1645607-A // System of synchronizing signaling apparatus // Matte Andrew L. // American Telephone & Telegraph | |||
| Version 1 (current) | 710 kB | Shaun Ewing | Oct 18, 1927 00:00 | US-1645607-A // System of synchronizing signaling apparatus // Matte Andrew L. // American Telephone & Telegraph | ||||
| PDF File 1645573.pdf | 802 kB | Shaun Ewing | Oct 18, 1927 00:00 |
|
US-1645573-A // Telephone-exchange system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 802 kB | Shaun Ewing | Oct 18, 1927 00:00 | US-1645573-A // Telephone-exchange system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1644745.pdf | 775 kB | Shaun Ewing | Oct 11, 1927 00:00 |
|
US-1644745-A // Transmission-level-control system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 775 kB | Shaun Ewing | Oct 11, 1927 00:00 | US-1644745-A // Transmission-level-control system // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1644727.pdf | 666 kB | Shaun Ewing | Oct 11, 1927 00:00 |
|
US-1644727-A // By-pass selector circuit // Jacobsen Emil // American Telephone & Telegraph | |||
| Version 1 (current) | 666 kB | Shaun Ewing | Oct 11, 1927 00:00 | US-1644727-A // By-pass selector circuit // Jacobsen Emil // American Telephone & Telegraph | ||||
| PDF File 1644024.pdf | 406 kB | Shaun Ewing | Oct 04, 1927 00:00 |
|
US-1644024-A // Lighting circuit // Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 406 kB | Shaun Ewing | Oct 04, 1927 00:00 | US-1644024-A // Lighting circuit // Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1644014.pdf | 209 kB | Shaun Ewing | Oct 04, 1927 00:00 |
|
US-1644014-A // Carbon-monoxide detector // Gordon Chester S. ; Lowe James T. // American Telephone & Telegraph | |||
| Version 1 (current) | 209 kB | Shaun Ewing | Oct 04, 1927 00:00 | US-1644014-A // Carbon-monoxide detector // Gordon Chester S. ; Lowe James T. // American Telephone & Telegraph | ||||
| PDF File 1644004.pdf | 1.01 MB | Shaun Ewing | Oct 04, 1927 00:00 |
|
US-1644004-A // Electrical wave filter // Zobel Otto J. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.01 MB | Shaun Ewing | Oct 04, 1927 00:00 | US-1644004-A // Electrical wave filter // Zobel Otto J. // American Telephone & Telegraph | ||||
| PDF File 1643350.pdf | 496 kB | Shaun Ewing | Sept 27, 1927 00:00 |
|
US-1643350-A // Neutralization of inductive interference // Shetzline Roy A. // American Telephone & Telegraph | |||
| Version 1 (current) | 496 kB | Shaun Ewing | Sept 27, 1927 00:00 | US-1643350-A // Neutralization of inductive interference // Shetzline Roy A. // American Telephone & Telegraph | ||||
| PDF File 1643332.pdf | 391 kB | Shaun Ewing | Sept 27, 1927 00:00 |
|
US-1643332-A // Electrical network // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Sept 27, 1927 00:00 | US-1643332-A // Electrical network // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1643323.pdf | 851 kB | Shaun Ewing | Sept 27, 1927 00:00 |
|
US-1643323-A // Directive antenna array // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 851 kB | Shaun Ewing | Sept 27, 1927 00:00 | US-1643323-A // Directive antenna array // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1642710.pdf | 758 kB | Shaun Ewing | Sept 20, 1927 00:00 |
|
US-1642710-A // Pilot-channel-indicating system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 758 kB | Shaun Ewing | Sept 20, 1927 00:00 | US-1642710-A // Pilot-channel-indicating system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1642703.pdf | 445 kB | Shaun Ewing | Sept 20, 1927 00:00 |
|
US-1642703-A // Carrier telegraph receiver // Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 445 kB | Shaun Ewing | Sept 20, 1927 00:00 | US-1642703-A // Carrier telegraph receiver // Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1642048.pdf | 585 kB | Shaun Ewing | Sept 13, 1927 00:00 |
|
US-1642048-A // Printing telegraph system // Vernam Gilbert S. ; Perry Donald B. // American Telephone & Telegraph | |||
| Version 1 (current) | 585 kB | Shaun Ewing | Sept 13, 1927 00:00 | US-1642048-A // Printing telegraph system // Vernam Gilbert S. ; Perry Donald B. // American Telephone & Telegraph | ||||
| PDF File 1642040.pdf | 204 kB | Shaun Ewing | Sept 13, 1927 00:00 |
|
US-1642040-A // Public-address system // Mccutchen Brunson S. // American Telephone & Telegraph | |||
| Version 1 (current) | 204 kB | Shaun Ewing | Sept 13, 1927 00:00 | US-1642040-A // Public-address system // Mccutchen Brunson S. // American Telephone & Telegraph | ||||
| PDF File 1642025.pdf | 124 kB | Shaun Ewing | Sept 13, 1927 00:00 |
|
US-1642025-A // Cross-arm // Hosford Roger F. // American Telephone & Telegraph | |||
| Version 1 (current) | 124 kB | Shaun Ewing | Sept 13, 1927 00:00 | US-1642025-A // Cross-arm // Hosford Roger F. // American Telephone & Telegraph |
