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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1810809.pdf | 635 kB | Shaun Ewing | Jun 16, 1931 00:00 |
|
US-1810809-A // Synchronous telegraph system // Angel Herbert ; Robinson James W. // Western Union Telegraph Co | |||
| Version 1 (current) | 635 kB | Shaun Ewing | Jun 16, 1931 00:00 | US-1810809-A // Synchronous telegraph system // Angel Herbert ; Robinson James W. // Western Union Telegraph Co | ||||
| PDF File 1811770.pdf | 476 kB | Shaun Ewing | Jun 23, 1931 00:00 |
|
US-1811770-A // Projecting apparatus // Wheeler Evan R. // Western Union Telegraph Co | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Jun 23, 1931 00:00 | US-1811770-A // Projecting apparatus // Wheeler Evan R. // Western Union Telegraph Co | ||||
| PDF File 1811824.pdf | 1.35 MB | Shaun Ewing | Jun 23, 1931 00:00 |
|
US-1811824-A // Vacuum tube repeater and terminal set for superposed telegraph systems // Morgenstern Ronald V. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Jun 23, 1931 00:00 | US-1811824-A // Vacuum tube repeater and terminal set for superposed telegraph systems // Morgenstern Ronald V. // Western Union Telegraph Co | ||||
| PDF File 1812824.pdf | 480 kB | Shaun Ewing | Jun 30, 1931 00:00 |
|
US-1812824-A // Telegraph repeater // Ferguson Cyrus C. // Western Union Telegraph Co | |||
| Version 1 (current) | 480 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812824-A // Telegraph repeater // Ferguson Cyrus C. // Western Union Telegraph Co | ||||
| PDF File 1814222.pdf | 450 kB | Shaun Ewing | Jul 14, 1931 00:00 |
|
US-1814222-A // Pneumatic tube system // Morehouse Harry W. // Western Union Telegraph Co | |||
| Version 1 (current) | 450 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814222-A // Pneumatic tube system // Morehouse Harry W. // Western Union Telegraph Co | ||||
| PDF File 1814899.pdf | 597 kB | Shaun Ewing | Jul 14, 1931 00:00 |
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US-1814899-A // Busy trunk line signal system // Demonet Eugene A. ; Copenhaver Preston S. // Western Union Telegraph Co | |||
| Version 1 (current) | 597 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814899-A // Busy trunk line signal system // Demonet Eugene A. ; Copenhaver Preston S. // Western Union Telegraph Co | ||||
| PDF File 1814902.pdf | 1.19 MB | Shaun Ewing | Jul 14, 1931 00:00 |
|
US-1814902-A // Telegraph system for dividing received intelligence into groups // Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.19 MB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814902-A // Telegraph system for dividing received intelligence into groups // Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 1814931.pdf | 723 kB | Shaun Ewing | Jul 14, 1931 00:00 |
|
US-1814931-A // Switchboard signal system // Janson George W. // Western Union Telegraph Co | |||
| Version 1 (current) | 723 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814931-A // Switchboard signal system // Janson George W. // Western Union Telegraph Co | ||||
| PDF File 1814947.pdf | 459 kB | Shaun Ewing | Jul 14, 1931 00:00 |
|
US-1814947-A // Automatic selective pneumatic tube carrier relay // Mcguinness William V. ; Francis William H. // Western Union Telegraph Co | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Jul 14, 1931 00:00 | US-1814947-A // Automatic selective pneumatic tube carrier relay // Mcguinness William V. ; Francis William H. // Western Union Telegraph Co | ||||
| PDF File 1815629.pdf | 942 kB | Shaun Ewing | Jul 21, 1931 00:00 |
|
US-1815629-A // Artificial line network // Milnor Joseph W. ; Cannon William D. // Western Union Telegraph Co | |||
| Version 1 (current) | 942 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815629-A // Artificial line network // Milnor Joseph W. ; Cannon William D. // Western Union Telegraph Co | ||||
| PDF File 1815786.pdf | 622 kB | Shaun Ewing | Jul 21, 1931 00:00 |
|
US-1815786-A // Printing telegraph control circuit // Long James W. // Western Union Telegraph Co | |||
| Version 1 (current) | 622 kB | Shaun Ewing | Jul 21, 1931 00:00 | US-1815786-A // Printing telegraph control circuit // Long James W. // Western Union Telegraph Co | ||||
| PDF File 1815969.pdf | 599 kB | Shaun Ewing | Jul 28, 1931 00:00 |
|
US-1815969-A // Synchronous communication system // Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 599 kB | Shaun Ewing | Jul 28, 1931 00:00 | US-1815969-A // Synchronous communication system // Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 1817702.pdf | 746 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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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 | ||||
| PDF File 1817717.pdf | 823 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1817717-A // Rotary distributor // Steeneck Robert // Western Union Telegraph Co | |||
| Version 1 (current) | 823 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1817717-A // Rotary distributor // Steeneck Robert // Western Union Telegraph Co | ||||
| PDF File 1817737.pdf | 595 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1817737-A // Potential distributing block // Demonet Eugene A. ; Copenhaver Preston S. // Western Union Telegraph Co | |||
| Version 1 (current) | 595 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1817737-A // Potential distributing block // Demonet Eugene A. ; Copenhaver Preston S. // Western Union Telegraph Co | ||||
| PDF File 1817738.pdf | 628 kB | Shaun Ewing | Aug 04, 1931 00:00 |
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US-1817738-A // Jack panel unit // Demonet Eugene A. ; Copenhaver Preston S. // Western Union Telegraph Co | |||
| Version 1 (current) | 628 kB | Shaun Ewing | Aug 04, 1931 00:00 | US-1817738-A // Jack panel unit // Demonet Eugene A. ; Copenhaver Preston S. // Western Union Telegraph Co | ||||
| PDF File 1818951.pdf | 236 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818951-A // Duct rod // Harrall Edwin R. ; Parrott Robert D. // Western Union Telegraph Co | |||
| Version 1 (current) | 236 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818951-A // Duct rod // Harrall Edwin R. ; Parrott Robert D. // Western Union Telegraph Co | ||||
| PDF File 1823761.pdf | 362 kB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823761-A // Hand tape moistener // Porter James F. // Western Union Telegraph Co | |||
| Version 1 (current) | 362 kB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823761-A // Hand tape moistener // Porter James F. // Western Union Telegraph Co | ||||
| PDF File 1826379.pdf | 451 kB | Shaun Ewing | Oct 06, 1931 00:00 |
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US-1826379-A // Transfer means for belt conveyers // Birkmeyer Paul J. ; Creedon Michael V. ; Chadbourne William C. // Western Union Telegraph Co | |||
| Version 1 (current) | 451 kB | Shaun Ewing | Oct 06, 1931 00:00 | US-1826379-A // Transfer means for belt conveyers // Birkmeyer Paul J. ; Creedon Michael V. ; Chadbourne William C. // Western Union Telegraph Co | ||||
| PDF File 1826928.pdf | 562 kB | Shaun Ewing | Oct 13, 1931 00:00 |
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US-1826928-A // Duplex telegraph system // Foster Lee R. // Western Union Telegraph Co | |||
| Version 1 (current) | 562 kB | Shaun Ewing | Oct 13, 1931 00:00 | US-1826928-A // Duplex telegraph system // Foster Lee R. // Western Union Telegraph Co |
