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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2339999.pdf | 787 kB | Shaun Ewing | Jan 25, 1944 00:00 |
|
US-2339999-A // Telegraph storage and switching system // Light George G. // Western Union Telegraph Co | |||
| Version 1 (current) | 787 kB | Shaun Ewing | Jan 25, 1944 00:00 | US-2339999-A // Telegraph storage and switching system // Light George G. // Western Union Telegraph Co | ||||
| PDF File 1788316.pdf | 786 kB | Shaun Ewing | Jan 06, 1931 00:00 |
|
US-1788316-A // Superposed telegraph system and bridge duplex set for use with such systems // Morgenstern Ronald V. // Western Union Telegraph Co | |||
| Version 1 (current) | 786 kB | Shaun Ewing | Jan 06, 1931 00:00 | US-1788316-A // Superposed telegraph system and bridge duplex set for use with such systems // Morgenstern Ronald V. // Western Union Telegraph Co | ||||
| PDF File 1848022.pdf | 778 kB | Shaun Ewing | Mar 01, 1932 00:00 |
|
US-1848022-A // Polar relay // Milnor Joseph W. ; Demonet Eugene A. ; Bramhall Fay B. // Western Union Telegraph Co | |||
| Version 1 (current) | 778 kB | Shaun Ewing | Mar 01, 1932 00:00 | US-1848022-A // Polar relay // Milnor Joseph W. ; Demonet Eugene A. ; Bramhall Fay B. // Western Union Telegraph Co | ||||
| PDF File 1431865.pdf | 774 kB | Shaun Ewing | Oct 10, 1922 00:00 |
|
US-1431865-A // Cable telegraphy // Angel Herbert // Western Union Telegraph Co | |||
| Version 1 (current) | 774 kB | Shaun Ewing | Oct 10, 1922 00:00 | US-1431865-A // Cable telegraphy // Angel Herbert // Western Union Telegraph Co | ||||
| PDF File 1776697.pdf | 771 kB | Shaun Ewing | Sept 23, 1930 00:00 |
|
US-1776697-A // Multiple sending and receiving device for pneumatic-tube systems // Mcguinness William V. ; Chulstrom John M. ; Francis William H. // Western Union Telegraph Co | |||
| Version 1 (current) | 771 kB | Shaun Ewing | Sept 23, 1930 00:00 | US-1776697-A // Multiple sending and receiving device for pneumatic-tube systems // Mcguinness William V. ; Chulstrom John M. ; Francis William H. // Western Union Telegraph Co | ||||
| PDF File 2016268.pdf | 771 kB | Shaun Ewing | Oct 01, 1935 00:00 |
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US-2016268-A // Conveyer transfer // Griffith Francis // Western Union Telegraph Co | |||
| Version 1 (current) | 771 kB | Shaun Ewing | Oct 01, 1935 00:00 | US-2016268-A // Conveyer transfer // Griffith Francis // Western Union Telegraph Co | ||||
| PDF File 1762795.pdf | 770 kB | Shaun Ewing | Jun 10, 1930 00:00 |
|
US-1762795-A // Combination telegraph transmitter and regenerator // Perry William Chrissie // Western Union Telegraph Co | |||
| Version 1 (current) | 770 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762795-A // Combination telegraph transmitter and regenerator // Perry William Chrissie // Western Union Telegraph Co | ||||
| PDF File 2296431.pdf | 769 kB | Shaun Ewing | Sept 22, 1942 00:00 |
|
US-2296431-A // Electromagnetic relay structure // Estes Phillip H. // Western Union Telegraph Co | |||
| Version 1 (current) | 769 kB | Shaun Ewing | Sept 22, 1942 00:00 | US-2296431-A // Electromagnetic relay structure // Estes Phillip H. // Western Union Telegraph Co | ||||
| PDF File 1968818.pdf | 767 kB | Shaun Ewing | Aug 07, 1934 00:00 |
|
US-1968818-A // Tape control for projectors // Dirkes Robert F. ; Roberts George I. // Western Union Telegraph Co | |||
| Version 1 (current) | 767 kB | Shaun Ewing | Aug 07, 1934 00:00 | US-1968818-A // Tape control for projectors // Dirkes Robert F. ; Roberts George I. // Western Union Telegraph Co | ||||
| PDF File 1961111.pdf | 763 kB | Shaun Ewing | May 29, 1934 00:00 |
|
US-1961111-A // Switchboard terminal block // Rovere Lewis H. ; Mott Everett V. // Western Union Telegraph Co | |||
| Version 1 (current) | 763 kB | Shaun Ewing | May 29, 1934 00:00 | US-1961111-A // Switchboard terminal block // Rovere Lewis H. ; Mott Everett V. // Western Union Telegraph Co | ||||
| PDF File 1599382.pdf | 761 kB | Shaun Ewing | Sept 07, 1926 00:00 |
|
US-1599382-A // Amplifying telegraphic signals // Milnor Joseph W. // Western Union Telegraph Co | |||
| Version 1 (current) | 761 kB | Shaun Ewing | Sept 07, 1926 00:00 | US-1599382-A // Amplifying telegraphic signals // Milnor Joseph W. // Western Union Telegraph Co | ||||
| PDF File 2259086.pdf | 760 kB | Shaun Ewing | Oct 14, 1941 00:00 |
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US-2259086-A // Switchboard plug and jack structure // Schmid Joseph // Western Union Telegraph Co | |||
| Version 1 (current) | 760 kB | Shaun Ewing | Oct 14, 1941 00:00 | US-2259086-A // Switchboard plug and jack structure // Schmid Joseph // Western Union Telegraph Co | ||||
| PDF File 1851956.pdf | 755 kB | Shaun Ewing | Mar 29, 1932 00:00 |
|
US-1851956-A // Method of and apparatus for signaling in high speed telegraph systems // Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 755 kB | Shaun Ewing | Mar 29, 1932 00:00 | US-1851956-A // Method of and apparatus for signaling in high speed telegraph systems // Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 1880824.pdf | 753 kB | Shaun Ewing | Oct 04, 1932 00:00 |
|
US-1880824-A // Switchboard jack // Copenhaver Preston S. ; Demonet Eugene A. ; Callahan William F. // Western Union Telegraph Co | |||
| Version 1 (current) | 753 kB | Shaun Ewing | Oct 04, 1932 00:00 | US-1880824-A // Switchboard jack // Copenhaver Preston S. ; Demonet Eugene A. ; Callahan William F. // Western Union Telegraph Co | ||||
| PDF File 2208400.pdf | 751 kB | Shaun Ewing | Jul 16, 1940 00:00 |
|
US-2208400-A // Electric conversion system // Steinmetz Alfred A. // Western Union Telegraph Co | |||
| Version 1 (current) | 751 kB | Shaun Ewing | Jul 16, 1940 00:00 | US-2208400-A // Electric conversion system // Steinmetz Alfred A. // Western Union Telegraph Co | ||||
| PDF File 2294146.pdf | 750 kB | Shaun Ewing | Aug 25, 1942 00:00 |
|
US-2294146-A // Electrosensitive recording blank // Wise Raleigh J. // Western Union Telegraph Co | |||
| Version 1 (current) | 750 kB | Shaun Ewing | Aug 25, 1942 00:00 | US-2294146-A // Electrosensitive recording blank // Wise Raleigh J. // Western Union Telegraph Co | ||||
| PDF File 1724803.pdf | 748 kB | Shaun Ewing | Aug 13, 1929 00:00 |
|
US-1724803-A // Cable telegraphy // Nelson Crescent F. // Western Union Telegraph Co | |||
| Version 1 (current) | 748 kB | Shaun Ewing | Aug 13, 1929 00:00 | US-1724803-A // Cable telegraphy // Nelson Crescent F. // Western Union Telegraph Co | ||||
| PDF File 2109989.pdf | 748 kB | Shaun Ewing | Mar 01, 1938 00:00 |
|
US-2109989-A // Telegraph transmitting system // Dirkes Robert F. ; Jr. James N. Anderson, // Western Union Telegraph Co | |||
| Version 1 (current) | 748 kB | Shaun Ewing | Mar 01, 1938 00:00 | US-2109989-A // Telegraph transmitting system // Dirkes Robert F. ; Jr. James N. Anderson, // Western Union Telegraph Co | ||||
| PDF File 1977886.pdf | 747 kB | Shaun Ewing | Oct 23, 1934 00:00 |
|
US-1977886-A // Belt conveyer // Miller Stephen A. // Western Union Telegraph Co | |||
| Version 1 (current) | 747 kB | Shaun Ewing | Oct 23, 1934 00:00 | US-1977886-A // Belt conveyer // Miller Stephen A. // Western Union Telegraph Co | ||||
| PDF File 1817702.pdf | 746 kB | Shaun Ewing | Aug 04, 1931 00:00 |
|
US-1817702-A // Combining alternating current channels with superposed telegraph circuits // Morgenstern Ronald V. // Western Union Telegraph Co | |||
| Version 1 (current) | 746 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1817702-A // Combining alternating current channels with superposed telegraph circuits // Morgenstern Ronald V. // Western Union Telegraph Co |
