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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1534661.pdf | 1.17 MB | Shaun Ewing | Apr 21, 1925 00:00 |
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US-1534661-A // System of telegraphic distribution // Potts Louis M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Apr 21, 1925 00:00 | US-1534661-A // System of telegraphic distribution // Potts Louis M. // American Telephone & Telegraph | ||||
| PDF File 1552465.pdf | 1.16 MB | Shaun Ewing | Sept 08, 1925 00:00 |
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US-1552465-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Sept 08, 1925 00:00 | US-1552465-A // Means and method for measuring direct capacities // Campbell George A. // American Telephone & Telegraph | ||||
| PDF File 1773798.pdf | 1.16 MB | Shaun Ewing | Aug 26, 1930 00:00 |
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US-1773798-A // Carrier-current telegraph system // Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Aug 26, 1930 00:00 | US-1773798-A // Carrier-current telegraph system // Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1748186.pdf | 1.16 MB | Shaun Ewing | Feb 25, 1930 00:00 |
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US-1748186-A // Signaling system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Feb 25, 1930 00:00 | US-1748186-A // Signaling system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1771453.pdf | 1.16 MB | Shaun Ewing | Jul 29, 1930 00:00 |
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US-1771453-A // Regenerative telegraph repeater // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.16 MB | Shaun Ewing | Jul 29, 1930 00:00 | US-1771453-A // Regenerative telegraph repeater // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1491867.pdf | 1.14 MB | Shaun Ewing | Apr 29, 1924 00:00 |
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US-1491867-A // Electrical switching device // Kuhn George W. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Apr 29, 1924 00:00 | US-1491867-A // Electrical switching device // Kuhn George W. // American Telephone & Telegraph | ||||
| PDF File 1591107.pdf | 1.14 MB | Shaun Ewing | Jul 06, 1926 00:00 |
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US-1591107-A // Program transmission over wires // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Jul 06, 1926 00:00 | US-1591107-A // Program transmission over wires // Toomey John F. ; Phelps Henry E. // American Telephone & Telegraph | ||||
| PDF File 1613685.pdf | 1.13 MB | Shaun Ewing | Jan 11, 1927 00:00 |
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US-1613685-A // Printing-telegraph exchange system // Vernam Gilbert S. ; Perry Donald B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Jan 11, 1927 00:00 | US-1613685-A // Printing-telegraph exchange system // Vernam Gilbert S. ; Perry Donald B. // American Telephone & Telegraph | ||||
| PDF File 1760984.pdf | 1.13 MB | Shaun Ewing | Jun 03, 1930 00:00 |
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US-1760984-A // Transoceanic radio telephone system // Hamilton Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Jun 03, 1930 00:00 | US-1760984-A // Transoceanic radio telephone system // Hamilton Harold S. // American Telephone & Telegraph | ||||
| PDF File 1429972.pdf | 1.13 MB | Shaun Ewing | Sept 26, 1922 00:00 |
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US-1429972-A // Desk operator's circuits // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Sept 26, 1922 00:00 | US-1429972-A // Desk operator's circuits // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1557544.pdf | 1.13 MB | Shaun Ewing | Oct 20, 1925 00:00 |
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US-1557544-A // Carrier frequency arrangement // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Oct 20, 1925 00:00 | US-1557544-A // Carrier frequency arrangement // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1490165.pdf | 1.13 MB | Shaun Ewing | Apr 15, 1924 00:00 |
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US-1490165-A // Balanced antenna system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Apr 15, 1924 00:00 | US-1490165-A // Balanced antenna system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1400732.pdf | 1.13 MB | Shaun Ewing | Dec 20, 1921 00:00 |
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US-1400732-A // Signaling system // Demarest Charles S. ; Jr. John Davidson, // American Telephone & Telegraph | |||
| Version 1 (current) | 1.13 MB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400732-A // Signaling system // Demarest Charles S. ; Jr. John Davidson, // American Telephone & Telegraph | ||||
| PDF File 1677956.pdf | 1.12 MB | Shaun Ewing | Jul 24, 1928 00:00 |
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US-1677956-A // Broadside antenna array // Dean Samuel W. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.12 MB | Shaun Ewing | Jul 24, 1928 00:00 | US-1677956-A // Broadside antenna array // Dean Samuel W. // American Telephone & Telegraph | ||||
| PDF File 1509886.pdf | 1.11 MB | Shaun Ewing | Sept 30, 1924 00:00 |
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US-1509886-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.11 MB | Shaun Ewing | Sept 30, 1924 00:00 | US-1509886-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1469253.pdf | 1.10 MB | Shaun Ewing | Oct 02, 1923 00:00 |
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US-1469253-A // Carrier telegraph circuits // Deardorff Ralph Warner // American Telephone & Telegraph | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Oct 02, 1923 00:00 | US-1469253-A // Carrier telegraph circuits // Deardorff Ralph Warner // American Telephone & Telegraph | ||||
| PDF File 1601023.pdf | 1.10 MB | Shaun Ewing | Sept 28, 1926 00:00 |
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US-1601023-A // Electrical signaling system // Hoyt Ray S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Sept 28, 1926 00:00 | US-1601023-A // Electrical signaling system // Hoyt Ray S. // American Telephone & Telegraph | ||||
| PDF File 1769959.pdf | 1.09 MB | Shaun Ewing | Jul 08, 1930 00:00 |
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US-1769959-A // Loading system // Mead Sallie P. ; French Norman R. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Jul 08, 1930 00:00 | US-1769959-A // Loading system // Mead Sallie P. ; French Norman R. // American Telephone & Telegraph | ||||
| PDF File 1454840.pdf | 1.09 MB | Shaun Ewing | May 15, 1923 00:00 |
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US-1454840-A // Means for ringing over multiplex transmission channels // Affel Herman A. // American Telephone And Telegrp | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | May 15, 1923 00:00 | US-1454840-A // Means for ringing over multiplex transmission channels // Affel Herman A. // American Telephone And Telegrp | ||||
| PDF File 1557037.pdf | 1.08 MB | Shaun Ewing | Oct 13, 1925 00:00 |
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US-1557037-A // Reduction of cross talk // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Oct 13, 1925 00:00 | US-1557037-A // Reduction of cross talk // Espenschied Lloyd // American Telephone & Telegraph |
