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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1747236.pdf | 1.00 MB | Shaun Ewing | Feb 18, 1930 00:00 |
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US-1747236-A // Automatic selection of receiving channels // Gillett Glenn D. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747236-A // Automatic selection of receiving channels // Gillett Glenn D. // American Telephone & Telegraph | ||||
| PDF File 1611252.pdf | 1.00 MB | Shaun Ewing | Dec 21, 1926 00:00 |
|
US-1611252-A // Switching system // Snavely Paul M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | Dec 21, 1926 00:00 | US-1611252-A // Switching system // Snavely Paul M. // American Telephone & Telegraph | ||||
| PDF File 1538964.pdf | 1.00 MB | Shaun Ewing | May 26, 1925 00:00 |
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US-1538964-A // Wave filter // Zobel Otto J. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | May 26, 1925 00:00 | US-1538964-A // Wave filter // Zobel Otto J. // American Telephone & Telegraph | ||||
| PDF File 1619897.pdf | 1.00 MB | Shaun Ewing | Mar 08, 1927 00:00 |
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US-1619897-A // Printing-telegraph-exchange system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.00 MB | Shaun Ewing | Mar 08, 1927 00:00 | US-1619897-A // Printing-telegraph-exchange system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1521674.pdf | 1023 kB | Shaun Ewing | Jan 06, 1925 00:00 |
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US-1521674-A // Carrier telegraph circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1023 kB | Shaun Ewing | Jan 06, 1925 00:00 | US-1521674-A // Carrier telegraph circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1454159.pdf | 1022 kB | Shaun Ewing | May 08, 1923 00:00 |
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US-1454159-A // Means for ringing over multiplex transmission channels // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1022 kB | Shaun Ewing | May 08, 1923 00:00 | US-1454159-A // Means for ringing over multiplex transmission channels // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1735044.pdf | 1009 kB | Shaun Ewing | Nov 12, 1929 00:00 |
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US-1735044-A // Frequency-equalization carrier system // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 1009 kB | Shaun Ewing | Nov 12, 1929 00:00 | US-1735044-A // Frequency-equalization carrier system // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1778407.pdf | 1001 kB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778407-A // Selective switch // Walters James N. ; Clark Edgar H. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1001 kB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778407-A // Selective switch // Walters James N. ; Clark Edgar H. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 1541878.pdf | 997 kB | Shaun Ewing | Jun 16, 1925 00:00 |
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US-1541878-A // Single polar telegraph circuits // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 997 kB | Shaun Ewing | Jun 16, 1925 00:00 | US-1541878-A // Single polar telegraph circuits // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1557633.pdf | 993 kB | Shaun Ewing | Oct 20, 1925 00:00 |
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US-1557633-A // Translating device // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 993 kB | Shaun Ewing | Oct 20, 1925 00:00 | US-1557633-A // Translating device // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1525523.pdf | 992 kB | Shaun Ewing | Feb 10, 1925 00:00 |
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US-1525523-A // Printing telegraphy // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 992 kB | Shaun Ewing | Feb 10, 1925 00:00 | US-1525523-A // Printing telegraphy // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1559641.pdf | 989 kB | Shaun Ewing | Nov 03, 1925 00:00 |
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US-1559641-A // Signaling with phase reversals // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 989 kB | Shaun Ewing | Nov 03, 1925 00:00 | US-1559641-A // Signaling with phase reversals // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1632777.pdf | 988 kB | Shaun Ewing | Jun 21, 1927 00:00 |
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US-1632777-A // Distribution of intelligence // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 988 kB | Shaun Ewing | Jun 21, 1927 00:00 | US-1632777-A // Distribution of intelligence // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1557230.pdf | 988 kB | Shaun Ewing | Oct 13, 1925 00:00 |
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US-1557230-A // Complementary filter // Zobel Otto J. // American Telephone & Telegraph | |||
| Version 1 (current) | 988 kB | Shaun Ewing | Oct 13, 1925 00:00 | US-1557230-A // Complementary filter // Zobel Otto J. // American Telephone & Telegraph | ||||
| PDF File 1676301.pdf | 981 kB | Shaun Ewing | Jul 10, 1928 00:00 |
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US-1676301-A // Program-transmission system for apartment houses // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 981 kB | Shaun Ewing | Jul 10, 1928 00:00 | US-1676301-A // Program-transmission system for apartment houses // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1784905.pdf | 980 kB | Shaun Ewing | Dec 16, 1930 00:00 |
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US-1784905-A // Telephone-exchange system // Morency George H. // American Telephone & Telegraph | |||
| Version 1 (current) | 980 kB | Shaun Ewing | Dec 16, 1930 00:00 | US-1784905-A // Telephone-exchange system // Morency George H. // American Telephone & Telegraph | ||||
| PDF File 1559642.pdf | 980 kB | Shaun Ewing | Nov 03, 1925 00:00 |
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US-1559642-A // Signaling with phase reversals // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 980 kB | Shaun Ewing | Nov 03, 1925 00:00 | US-1559642-A // Signaling with phase reversals // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1472821.pdf | 974 kB | Shaun Ewing | Nov 06, 1923 00:00 |
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US-1472821-A // Ringing channel for multiplex telephone systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 974 kB | Shaun Ewing | Nov 06, 1923 00:00 | US-1472821-A // Ringing channel for multiplex telephone systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1773097.pdf | 973 kB | Shaun Ewing | Aug 19, 1930 00:00 |
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US-1773097-A // Staggered-wave antenna system // Dean Samuel W. // American Telephone & Telegraph | |||
| Version 1 (current) | 973 kB | Shaun Ewing | Aug 19, 1930 00:00 | US-1773097-A // Staggered-wave antenna system // Dean Samuel W. // American Telephone & Telegraph | ||||
| PDF File 1670376.pdf | 970 kB | Shaun Ewing | May 22, 1928 00:00 |
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US-1670376-A // High-speed signaling system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 970 kB | Shaun Ewing | May 22, 1928 00:00 | US-1670376-A // High-speed signaling system // Nyquist Harry // American Telephone & Telegraph |
