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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1582984.pdf | 427 kB | Shaun Ewing | May 04, 1926 00:00 |
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US-1582984-A // Automatic regulation of echo-suppressor sensitivity // Hamilton Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 427 kB | Shaun Ewing | May 04, 1926 00:00 | US-1582984-A // Automatic regulation of echo-suppressor sensitivity // Hamilton Harold S. // American Telephone & Telegraph | ||||
| PDF File 1544622.pdf | 427 kB | Shaun Ewing | Jul 07, 1925 00:00 |
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US-1544622-A // Elimination of interference in carrier systems // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 427 kB | Shaun Ewing | Jul 07, 1925 00:00 | US-1544622-A // Elimination of interference in carrier systems // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1438219.pdf | 425 kB | Shaun Ewing | Dec 12, 1922 00:00 |
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US-1438219-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Dec 12, 1922 00:00 | US-1438219-A // Means for and method of regulating the transmission over electric circuits // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1572977.pdf | 424 kB | Shaun Ewing | Feb 16, 1926 00:00 |
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US-1572977-A // Telephone system // Nostitz Erich Von // American Telephone & Telegraph | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Feb 16, 1926 00:00 | US-1572977-A // Telephone system // Nostitz Erich Von // American Telephone & Telegraph | ||||
| PDF File 1459770.pdf | 424 kB | Shaun Ewing | Jun 26, 1923 00:00 |
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US-1459770-A // System for testing line balance // Jones Alva J. // American Telephone & Telegraph | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Jun 26, 1923 00:00 | US-1459770-A // System for testing line balance // Jones Alva J. // American Telephone & Telegraph | ||||
| PDF File 1421702.pdf | 424 kB | Shaun Ewing | Jul 04, 1922 00:00 |
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US-1421702-A // Testing apparatus // Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Jul 04, 1922 00:00 | US-1421702-A // Testing apparatus // Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1560544.pdf | 424 kB | Shaun Ewing | Nov 10, 1925 00:00 |
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US-1560544-A // Testing circuits for echo suppressors // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Nov 10, 1925 00:00 | US-1560544-A // Testing circuits for echo suppressors // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1701561.pdf | 423 kB | Shaun Ewing | Feb 12, 1929 00:00 |
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US-1701561-A // Insulator // Gordon Chester S. // American Telephone & Telegraph | |||
| Version 1 (current) | 423 kB | Shaun Ewing | Feb 12, 1929 00:00 | US-1701561-A // Insulator // Gordon Chester S. // American Telephone & Telegraph | ||||
| PDF File 1699567.pdf | 423 kB | Shaun Ewing | Jan 22, 1929 00:00 |
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US-1699567-A // Radio signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 423 kB | Shaun Ewing | Jan 22, 1929 00:00 | US-1699567-A // Radio signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1593619.pdf | 422 kB | Shaun Ewing | Jul 27, 1926 00:00 |
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US-1593619-A // Carrier signaling system // Carpe Allen // American Telephone & Telegraph | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Jul 27, 1926 00:00 | US-1593619-A // Carrier signaling system // Carpe Allen // American Telephone & Telegraph | ||||
| PDF File 1736814.pdf | 422 kB | Shaun Ewing | Nov 26, 1929 00:00 |
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US-1736814-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Nov 26, 1929 00:00 | US-1736814-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1604140.pdf | 422 kB | Shaun Ewing | Oct 26, 1926 00:00 |
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US-1604140-A // Multifrequency oscillator // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Oct 26, 1926 00:00 | US-1604140-A // Multifrequency oscillator // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1511756.pdf | 422 kB | Shaun Ewing | Oct 14, 1924 00:00 |
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US-1511756-A // Electrical testing system // Cory Samuel I. // American Telephone & Telegraph | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Oct 14, 1924 00:00 | US-1511756-A // Electrical testing system // Cory Samuel I. // American Telephone & Telegraph | ||||
| PDF File 1441270.pdf | 421 kB | Shaun Ewing | Jan 09, 1923 00:00 |
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US-1441270-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Jan 09, 1923 00:00 | US-1441270-A // Transmission system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1652242.pdf | 421 kB | Shaun Ewing | Dec 13, 1927 00:00 |
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US-1652242-A // Telegraph repeater // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 421 kB | Shaun Ewing | Dec 13, 1927 00:00 | US-1652242-A // Telegraph repeater // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1744031.pdf | 420 kB | Shaun Ewing | Jan 21, 1930 00:00 |
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US-1744031-A // Measurement of active-balance components // Abraham Leonard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 420 kB | Shaun Ewing | Jan 21, 1930 00:00 | US-1744031-A // Measurement of active-balance components // Abraham Leonard G. // American Telephone & Telegraph | ||||
| PDF File 1783131.pdf | 420 kB | Shaun Ewing | Nov 25, 1930 00:00 |
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US-1783131-A // Mounting for piezo-electric devices // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 420 kB | Shaun Ewing | Nov 25, 1930 00:00 | US-1783131-A // Mounting for piezo-electric devices // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1783321.pdf | 420 kB | Shaun Ewing | Dec 02, 1930 00:00 |
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US-1783321-A // Electrical transmission of pictures // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 420 kB | Shaun Ewing | Dec 02, 1930 00:00 | US-1783321-A // Electrical transmission of pictures // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1663750.pdf | 420 kB | Shaun Ewing | Mar 27, 1928 00:00 |
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US-1663750-A // Automatic transmission-measuring set // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 420 kB | Shaun Ewing | Mar 27, 1928 00:00 | US-1663750-A // Automatic transmission-measuring set // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1691990.pdf | 419 kB | Shaun Ewing | Nov 20, 1928 00:00 |
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US-1691990-A // High-frequency signaling system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 419 kB | Shaun Ewing | Nov 20, 1928 00:00 | US-1691990-A // High-frequency signaling system // Potter Ralph K. // American Telephone & Telegraph |
