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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1645618.pdf | 661 kB | Shaun Ewing | Oct 18, 1927 00:00 |
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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 1508425.pdf | 661 kB | Shaun Ewing | Sept 16, 1924 00:00 |
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US-1508425-A // Telephone private branch exchange circuits // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | |||
| Version 1 (current) | 661 kB | Shaun Ewing | Sept 16, 1924 00:00 | US-1508425-A // Telephone private branch exchange circuits // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | ||||
| PDF File 1463795.pdf | 661 kB | Shaun Ewing | Aug 07, 1923 00:00 |
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US-1463795-A // Translating circuit // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 661 kB | Shaun Ewing | Aug 07, 1923 00:00 | US-1463795-A // Translating circuit // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1555916.pdf | 657 kB | Shaun Ewing | Oct 06, 1925 00:00 |
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US-1555916-A // Frequency-translating system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 657 kB | Shaun Ewing | Oct 06, 1925 00:00 | US-1555916-A // Frequency-translating system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1671172.pdf | 654 kB | Shaun Ewing | May 29, 1928 00:00 |
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US-1671172-A // Volume-control apparatus // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 654 kB | Shaun Ewing | May 29, 1928 00:00 | US-1671172-A // Volume-control apparatus // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1496847.pdf | 653 kB | Shaun Ewing | Jun 10, 1924 00:00 |
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US-1496847-A // Telephone-exchange system // Hoffmann Henry L. // American Telephone & Telegraph | |||
| Version 1 (current) | 653 kB | Shaun Ewing | Jun 10, 1924 00:00 | US-1496847-A // Telephone-exchange system // Hoffmann Henry L. // American Telephone & Telegraph | ||||
| PDF File 1570770.pdf | 653 kB | Shaun Ewing | Jan 26, 1926 00:00 |
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US-1570770-A // Means for and method of reducing interference // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 653 kB | Shaun Ewing | Jan 26, 1926 00:00 | US-1570770-A // Means for and method of reducing interference // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1742927.pdf | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 |
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US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1606855.pdf | 652 kB | Shaun Ewing | Nov 16, 1926 00:00 |
|
US-1606855-A // Distortion-measuring system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Nov 16, 1926 00:00 | US-1606855-A // Distortion-measuring system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1543789.pdf | 651 kB | Shaun Ewing | Jun 30, 1925 00:00 |
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US-1543789-A // Printing-telegraph exchange system // Parker Ralzemond D. ; Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 651 kB | Shaun Ewing | Jun 30, 1925 00:00 | US-1543789-A // Printing-telegraph exchange system // Parker Ralzemond D. ; Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1737668.pdf | 650 kB | Shaun Ewing | Dec 03, 1929 00:00 |
|
US-1737668-A // Signaling system // Morehouse Lyman F. ; Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 650 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1737668-A // Signaling system // Morehouse Lyman F. ; Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1534118.pdf | 649 kB | Shaun Ewing | Apr 21, 1925 00:00 |
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US-1534118-A // Method of adjusting balance between electrical conductors or networks // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 649 kB | Shaun Ewing | Apr 21, 1925 00:00 | US-1534118-A // Method of adjusting balance between electrical conductors or networks // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1522268.pdf | 648 kB | Shaun Ewing | Jan 06, 1925 00:00 |
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US-1522268-A // Automatic telegraph repeater // Potts Louis M. // American Telephone & Telegraph | |||
| Version 1 (current) | 648 kB | Shaun Ewing | Jan 06, 1925 00:00 | US-1522268-A // Automatic telegraph repeater // Potts Louis M. // American Telephone & Telegraph | ||||
| PDF File 1715433.pdf | 647 kB | Shaun Ewing | Jun 04, 1929 00:00 |
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US-1715433-A // Antenna array // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 647 kB | Shaun Ewing | Jun 04, 1929 00:00 | US-1715433-A // Antenna array // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1502812.pdf | 647 kB | Shaun Ewing | Jul 29, 1924 00:00 |
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US-1502812-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 647 kB | Shaun Ewing | Jul 29, 1924 00:00 | US-1502812-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1429248.pdf | 647 kB | Shaun Ewing | Sept 19, 1922 00:00 |
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US-1429248-A // Multiplex signaling system // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 647 kB | Shaun Ewing | Sept 19, 1922 00:00 | US-1429248-A // Multiplex signaling system // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1772519.pdf | 646 kB | Shaun Ewing | Aug 12, 1930 00:00 |
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US-1772519-A // Electrooptical transmission // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 646 kB | Shaun Ewing | Aug 12, 1930 00:00 | US-1772519-A // Electrooptical transmission // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1427923.pdf | 646 kB | Shaun Ewing | Sept 05, 1922 00:00 |
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US-1427923-A // Telephone-call circuits // Toomey John F. ; Loynes Owen H. // American Telephone & Telegraph | |||
| Version 1 (current) | 646 kB | Shaun Ewing | Sept 05, 1922 00:00 | US-1427923-A // Telephone-call circuits // Toomey John F. ; Loynes Owen H. // American Telephone & Telegraph | ||||
| PDF File 1709900.pdf | 645 kB | Shaun Ewing | Apr 23, 1929 00:00 |
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US-1709900-A // Telephone system // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 645 kB | Shaun Ewing | Apr 23, 1929 00:00 | US-1709900-A // Telephone system // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1759019.pdf | 645 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759019-A // Electrical testing system // Murphy John B. // American Telephone & Telegraph | |||
| Version 1 (current) | 645 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759019-A // Electrical testing system // Murphy John B. // American Telephone & Telegraph |
