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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1711562.pdf | 249 kB | Shaun Ewing | May 07, 1929 00:00 |
|
US-1711562-A // Echo-suppressor circuits // Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 249 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711562-A // Echo-suppressor circuits // Fetter Charles H. // American Telephone & Telegraph | ||||
| PDF File 1748175.pdf | 249 kB | Shaun Ewing | Feb 25, 1930 00:00 |
|
US-1748175-A // Thermionic vacuum tube // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 249 kB | Shaun Ewing | Feb 25, 1930 00:00 | US-1748175-A // Thermionic vacuum tube // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1700168.pdf | 248 kB | Shaun Ewing | Jan 29, 1929 00:00 |
|
US-1700168-A // Cable clamp and bridle ring // Klein Charles H. ; John Everett St. // American Telephone & Telegraph | |||
| Version 1 (current) | 248 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700168-A // Cable clamp and bridle ring // Klein Charles H. ; John Everett St. // American Telephone & Telegraph | ||||
| PDF File 1673829.pdf | 248 kB | Shaun Ewing | Jun 19, 1928 00:00 |
|
US-1673829-A // Testing of telegraph circuits // Kirkwood Maclean // American Telephone & Telegraph | |||
| Version 1 (current) | 248 kB | Shaun Ewing | Jun 19, 1928 00:00 | US-1673829-A // Testing of telegraph circuits // Kirkwood Maclean // American Telephone & Telegraph | ||||
| PDF File 1689230.pdf | 248 kB | Shaun Ewing | Oct 30, 1928 00:00 |
|
US-1689230-A // Locking device for switch keys // Christopher Harry J. // American Telephone & Telegraph | |||
| Version 1 (current) | 248 kB | Shaun Ewing | Oct 30, 1928 00:00 | US-1689230-A // Locking device for switch keys // Christopher Harry J. // American Telephone & Telegraph | ||||
| PDF File 1763770.pdf | 248 kB | Shaun Ewing | Jun 17, 1930 00:00 |
|
US-1763770-A // Cable clamp and bridle ring // Fish Lewin B. ; John Everett St. // American Telephone & Telegraph | |||
| Version 1 (current) | 248 kB | Shaun Ewing | Jun 17, 1930 00:00 | US-1763770-A // Cable clamp and bridle ring // Fish Lewin B. ; John Everett St. // American Telephone & Telegraph | ||||
| PDF File 1368296.pdf | 247 kB | Shaun Ewing | Feb 15, 1921 00:00 |
|
US-1368296-A // Anchoring device // Sked Norman S. // American Telephone & Telegraph | |||
| Version 1 (current) | 247 kB | Shaun Ewing | Feb 15, 1921 00:00 | US-1368296-A // Anchoring device // Sked Norman S. // American Telephone & Telegraph | ||||
| PDF File 1762255.pdf | 246 kB | Shaun Ewing | Jun 10, 1930 00:00 |
|
US-1762255-A // Method of plugging cables // Baldwin Charles E. // American Telephone & Telegraph | |||
| Version 1 (current) | 246 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762255-A // Method of plugging cables // Baldwin Charles E. // American Telephone & Telegraph | ||||
| PDF File 1731264.pdf | 246 kB | Shaun Ewing | Oct 15, 1929 00:00 |
|
US-1731264-A // Apparatus for controlling the output of alternating-current generators // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 246 kB | Shaun Ewing | Oct 15, 1929 00:00 | US-1731264-A // Apparatus for controlling the output of alternating-current generators // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1575650.pdf | 246 kB | Shaun Ewing | Mar 09, 1926 00:00 |
|
US-1575650-A // Telegraph key // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 246 kB | Shaun Ewing | Mar 09, 1926 00:00 | US-1575650-A // Telegraph key // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1596916.pdf | 244 kB | Shaun Ewing | Aug 24, 1926 00:00 |
|
US-1596916-A // Measuring transmission delay // Wright Sumner B. ; Pfleger Kenneth W. // American Telephone & Telegraph | |||
| Version 1 (current) | 244 kB | Shaun Ewing | Aug 24, 1926 00:00 | US-1596916-A // Measuring transmission delay // Wright Sumner B. ; Pfleger Kenneth W. // American Telephone & Telegraph | ||||
| PDF File 1681246.pdf | 243 kB | Shaun Ewing | Aug 21, 1928 00:00 |
|
US-1681246-A // Telephone system with auxiliary signaling circuit // Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 243 kB | Shaun Ewing | Aug 21, 1928 00:00 | US-1681246-A // Telephone system with auxiliary signaling circuit // Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1707260.pdf | 242 kB | Shaun Ewing | Apr 02, 1929 00:00 |
|
US-1707260-A // Recording and reproducing of sound waves // Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 242 kB | Shaun Ewing | Apr 02, 1929 00:00 | US-1707260-A // Recording and reproducing of sound waves // Fetter Charles H. // American Telephone & Telegraph | ||||
| PDF File 1765607.pdf | 242 kB | Shaun Ewing | Jun 24, 1930 00:00 |
|
US-1765607-A // Amplifying device // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 242 kB | Shaun Ewing | Jun 24, 1930 00:00 | US-1765607-A // Amplifying device // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1519202.pdf | 242 kB | Shaun Ewing | Dec 16, 1924 00:00 |
|
US-1519202-A // Telegraph system // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 242 kB | Shaun Ewing | Dec 16, 1924 00:00 | US-1519202-A // Telegraph system // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1562500.pdf | 240 kB | Shaun Ewing | Nov 24, 1925 00:00 |
|
US-1562500-A // Receiving circuits for low-frequency impulses // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 240 kB | Shaun Ewing | Nov 24, 1925 00:00 | US-1562500-A // Receiving circuits for low-frequency impulses // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1512087.pdf | 240 kB | Shaun Ewing | Oct 21, 1924 00:00 |
|
US-1512087-A // Buckle for safety straps // Fish Lewin B. // American Telephone & Telegraph | |||
| Version 1 (current) | 240 kB | Shaun Ewing | Oct 21, 1924 00:00 | US-1512087-A // Buckle for safety straps // Fish Lewin B. // American Telephone & Telegraph | ||||
| PDF File 1524357.pdf | 240 kB | Shaun Ewing | Jan 27, 1925 00:00 |
|
US-1524357-A // Telegraphy // Hudson George E. // American Telephone & Telegraph | |||
| Version 1 (current) | 240 kB | Shaun Ewing | Jan 27, 1925 00:00 | US-1524357-A // Telegraphy // Hudson George E. // 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 1745369.pdf | 239 kB | Shaun Ewing | Feb 04, 1930 00:00 |
|
US-1745369-A // Unipotential-cathode vacuum tube // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 239 kB | Shaun Ewing | Feb 04, 1930 00:00 | US-1745369-A // Unipotential-cathode vacuum tube // Holden William H. T. // American Telephone & Telegraph |
