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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1739606.pdf | 545 kB | Shaun Ewing | Dec 17, 1929 00:00 |
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US-1739606-A // Echo suppressor // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | |||
| Version 1 (current) | 545 kB | Shaun Ewing | Dec 17, 1929 00:00 | US-1739606-A // Echo suppressor // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | ||||
| PDF File 1742251.pdf | 544 kB | Shaun Ewing | Jan 07, 1930 00:00 |
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US-1742251-A // Amplifying system // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 544 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742251-A // Amplifying system // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1724019.pdf | 542 kB | Shaun Ewing | Aug 13, 1929 00:00 |
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US-1724019-A // Radio receiving system // Harper Augustus E. // American Telephone & Telegraph | |||
| Version 1 (current) | 542 kB | Shaun Ewing | Aug 13, 1929 00:00 | US-1724019-A // Radio receiving system // Harper Augustus E. // American Telephone & Telegraph | ||||
| PDF File 1598663.pdf | 541 kB | Shaun Ewing | Sept 07, 1926 00:00 |
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US-1598663-A // Multiplex radio telegraphy and telephony // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 541 kB | Shaun Ewing | Sept 07, 1926 00:00 | US-1598663-A // Multiplex radio telegraphy and telephony // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1710756.pdf | 540 kB | Shaun Ewing | Apr 30, 1929 00:00 |
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US-1710756-A // Reduction of attenuation due to the conductance losses in cross arms and insulator pins // Wilson Leon T. // American Telephone & Telegraph | |||
| Version 1 (current) | 540 kB | Shaun Ewing | Apr 30, 1929 00:00 | US-1710756-A // Reduction of attenuation due to the conductance losses in cross arms and insulator pins // Wilson Leon T. // American Telephone & Telegraph | ||||
| PDF File 1646439.pdf | 539 kB | Shaun Ewing | Oct 25, 1927 00:00 |
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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 1653074.pdf | 539 kB | Shaun Ewing | Dec 20, 1927 00:00 |
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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 1680363.pdf | 539 kB | Shaun Ewing | Aug 14, 1928 00:00 |
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US-1680363-A // Directive antenna // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 539 kB | Shaun Ewing | Aug 14, 1928 00:00 | US-1680363-A // Directive antenna // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1752344.pdf | 537 kB | Shaun Ewing | Apr 01, 1930 00:00 |
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US-1752344-A // Reduction of atmospheric interference // Kelley Leo A. // American Telephone & Telegraph | |||
| Version 1 (current) | 537 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752344-A // Reduction of atmospheric interference // Kelley Leo A. // American Telephone & Telegraph | ||||
| PDF File 1583004.pdf | 537 kB | Shaun Ewing | May 04, 1926 00:00 |
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US-1583004-A // Signal-detecting system // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 537 kB | Shaun Ewing | May 04, 1926 00:00 | US-1583004-A // Signal-detecting system // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1743245.pdf | 535 kB | Shaun Ewing | Jan 14, 1930 00:00 |
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US-1743245-A // Apparatus for spraying liquids // Smith Temple C. // American Telephone & Telegraph | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743245-A // Apparatus for spraying liquids // Smith Temple C. // American Telephone & Telegraph | ||||
| PDF File 1600283.pdf | 535 kB | Shaun Ewing | Sept 21, 1926 00:00 |
|
US-1600283-A // Artificial line // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 535 kB | Shaun Ewing | Sept 21, 1926 00:00 | US-1600283-A // Artificial line // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1556320.pdf | 534 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1556320-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 534 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1556320-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1447773.pdf | 534 kB | Shaun Ewing | Mar 06, 1923 00:00 |
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US-1447773-A // Radio transmission control system // Espenschied Lloyd ; Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 534 kB | Shaun Ewing | Mar 06, 1923 00:00 | US-1447773-A // Radio transmission control system // Espenschied Lloyd ; Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1704780.pdf | 534 kB | Shaun Ewing | Mar 12, 1929 00:00 |
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US-1704780-A // Method and means for simultaneously signaling all subscribers of carrier telegraph systems // Affel Herman A. ; Hamilton Baxter P. ; Thorp Vaughn P. ; Clapp Robert H. // American Telephone & Telegraph | |||
| Version 1 (current) | 534 kB | Shaun Ewing | Mar 12, 1929 00:00 | US-1704780-A // Method and means for simultaneously signaling all subscribers of carrier telegraph systems // Affel Herman A. ; Hamilton Baxter P. ; Thorp Vaughn P. ; Clapp Robert H. // American Telephone & Telegraph | ||||
| PDF File 1756132.pdf | 533 kB | Shaun Ewing | Apr 29, 1930 00:00 |
|
US-1756132-A // High-frequency-oscillation generator // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 533 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756132-A // High-frequency-oscillation generator // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1656956.pdf | 532 kB | Shaun Ewing | Jan 24, 1928 00:00 |
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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 1639799.pdf | 531 kB | Shaun Ewing | Aug 23, 1927 00:00 |
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US-1639799-A // Automatic telephone system // Friend Otto A. ; Dustin George E. // American Telephone & Telegraph | |||
| Version 1 (current) | 531 kB | Shaun Ewing | Aug 23, 1927 00:00 | US-1639799-A // Automatic telephone system // Friend Otto A. ; Dustin George E. // American Telephone & Telegraph | ||||
| PDF File 1723123.pdf | 531 kB | Shaun Ewing | Aug 06, 1929 00:00 |
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US-1723123-A // Telephone system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 531 kB | Shaun Ewing | Aug 06, 1929 00:00 | US-1723123-A // Telephone system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1390580.pdf | 530 kB | Shaun Ewing | Sept 13, 1921 00:00 |
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US-1390580-A // Means for reducing interference // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 530 kB | Shaun Ewing | Sept 13, 1921 00:00 | US-1390580-A // Means for reducing interference // Osborne Harold S. // American Telephone & Telegraph |
