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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1786549.pdf | 568 kB | Shaun Ewing | Dec 30, 1930 00:00 |
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US-1786549-A // Method and means for preparing insulating sleeves // Reed Thomas C. ; Odell Aubrey D. // American Telephone & Telegraph | |||
| Version 1 (current) | 568 kB | Shaun Ewing | Dec 30, 1930 00:00 | US-1786549-A // Method and means for preparing insulating sleeves // Reed Thomas C. ; Odell Aubrey D. // American Telephone & Telegraph | ||||
| PDF File 1666988.pdf | 568 kB | Shaun Ewing | Apr 24, 1928 00:00 |
|
US-1666988-A // Trunking system // Blauvelt William G. // American Telephone & Telegraph | |||
| Version 1 (current) | 568 kB | Shaun Ewing | Apr 24, 1928 00:00 | US-1666988-A // Trunking system // Blauvelt William G. // American Telephone & Telegraph | ||||
| PDF File 1514648.pdf | 566 kB | Shaun Ewing | Nov 11, 1924 00:00 |
|
US-1514648-A // Directive radio system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 566 kB | Shaun Ewing | Nov 11, 1924 00:00 | US-1514648-A // Directive radio system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1527345.pdf | 566 kB | Shaun Ewing | Feb 24, 1925 00:00 |
|
US-1527345-A // Electrical testing device // Birchall Benjamin H. // American Telephone & Telegraph | |||
| Version 1 (current) | 566 kB | Shaun Ewing | Feb 24, 1925 00:00 | US-1527345-A // Electrical testing device // Birchall Benjamin H. // American Telephone & Telegraph | ||||
| PDF File 1504319.pdf | 565 kB | Shaun Ewing | Aug 12, 1924 00:00 |
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US-1504319-A // Testing apparatus // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 565 kB | Shaun Ewing | Aug 12, 1924 00:00 | US-1504319-A // Testing apparatus // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1580624.pdf | 564 kB | Shaun Ewing | Apr 13, 1926 00:00 |
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US-1580624-A // Gain-control circuits for repeaters // Nyquist Harry ; Bouton Lewis L. ; Shoffstall Hugh F. // American Telephone & Telegraph | |||
| Version 1 (current) | 564 kB | Shaun Ewing | Apr 13, 1926 00:00 | US-1580624-A // Gain-control circuits for repeaters // Nyquist Harry ; Bouton Lewis L. ; Shoffstall Hugh F. // American Telephone & Telegraph | ||||
| PDF File 1552467.pdf | 563 kB | Shaun Ewing | Sept 08, 1925 00:00 |
|
US-1552467-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 563 kB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552467-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1553435.pdf | 563 kB | Shaun Ewing | Sept 15, 1925 00:00 |
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US-1553435-A // Means to control cross talk // Chapman Arthur G. ; Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 563 kB | Shaun Ewing | Sept 15, 1925 00:00 | US-1553435-A // Means to control cross talk // Chapman Arthur G. ; Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1728247.pdf | 561 kB | Shaun Ewing | Sept 17, 1929 00:00 |
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US-1728247-A // Echo suppressor // Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 561 kB | Shaun Ewing | Sept 17, 1929 00:00 | US-1728247-A // Echo suppressor // Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 1560540.pdf | 561 kB | Shaun Ewing | Nov 10, 1925 00:00 |
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US-1560540-A // Means for preventing electrical interference // Cory Samuel I. // American Telephone & Telegraph | |||
| Version 1 (current) | 561 kB | Shaun Ewing | Nov 10, 1925 00:00 | US-1560540-A // Means for preventing electrical interference // Cory Samuel I. // American Telephone & Telegraph | ||||
| PDF File 1638437.pdf | 559 kB | Shaun Ewing | Aug 09, 1927 00:00 |
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US-1638437-A // Electrical network // Gannett Danforth K. ; Kirkwood Maclean // American Telephone And Telegrp | |||
| Version 1 (current) | 559 kB | Shaun Ewing | Aug 09, 1927 00:00 | US-1638437-A // Electrical network // Gannett Danforth K. ; Kirkwood Maclean // American Telephone And Telegrp | ||||
| PDF File 1448702.pdf | 559 kB | Shaun Ewing | Mar 13, 1923 00:00 |
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US-1448702-A // Translating circuits // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 559 kB | Shaun Ewing | Mar 13, 1923 00:00 | US-1448702-A // Translating circuits // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1451767.pdf | 558 kB | Shaun Ewing | Apr 17, 1923 00:00 |
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US-1451767-A // Composite ringer for multiplex-transmission systems // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Apr 17, 1923 00:00 | US-1451767-A // Composite ringer for multiplex-transmission systems // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1502815.pdf | 558 kB | Shaun Ewing | Jul 29, 1924 00:00 |
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US-1502815-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Jul 29, 1924 00:00 | US-1502815-A // High-frequency multiplex signaling system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1551595.pdf | 558 kB | Shaun Ewing | Sept 01, 1925 00:00 |
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US-1551595-A // Alternating-current printing-telegraph system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 558 kB | Shaun Ewing | Sept 01, 1925 00:00 | US-1551595-A // Alternating-current printing-telegraph system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 1776311.pdf | 557 kB | Shaun Ewing | Sept 23, 1930 00:00 |
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US-1776311-A // Repeater system // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Sept 23, 1930 00:00 | US-1776311-A // Repeater system // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1549821.pdf | 557 kB | Shaun Ewing | Aug 18, 1925 00:00 |
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US-1549821-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 557 kB | Shaun Ewing | Aug 18, 1925 00:00 | US-1549821-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1471388.pdf | 556 kB | Shaun Ewing | Oct 23, 1923 00:00 |
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US-1471388-A // Signaling circuit // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Oct 23, 1923 00:00 | US-1471388-A // Signaling circuit // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1530537.pdf | 556 kB | Shaun Ewing | Mar 24, 1925 00:00 |
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US-1530537-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Mar 24, 1925 00:00 | US-1530537-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1484988.pdf | 555 kB | Shaun Ewing | Feb 26, 1924 00:00 |
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US-1484988-A // Public-address circuits // Hamilton Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 555 kB | Shaun Ewing | Feb 26, 1924 00:00 | US-1484988-A // Public-address circuits // Hamilton Harold S. // American Telephone & Telegraph |
