Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1832722.pdf | 637 kB | Shaun Ewing | Nov 17, 1931 00:00 |
|
US-1832722-A // Shaping arrangement for metallic telegraph circuits // Morgenstern Ronald V. ; Erickson George L. // Western Union Telegraph Co | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832722-A // Shaping arrangement for metallic telegraph circuits // Morgenstern Ronald V. ; Erickson George L. // Western Union Telegraph Co | ||||
| PDF File 1831700.pdf | 412 kB | Shaun Ewing | Nov 10, 1931 00:00 |
|
US-1831700-A // Message copyholder and gumming desk for printing telegraph machines // Blanchard Rolla F. ; Porter James F. ; Marx George // Western Union Telegraph Co | |||
| Version 1 (current) | 412 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1831700-A // Message copyholder and gumming desk for printing telegraph machines // Blanchard Rolla F. ; Porter James F. ; Marx George // Western Union Telegraph Co | ||||
| PDF File 1830700.pdf | 630 kB | Shaun Ewing | Nov 03, 1931 00:00 |
|
US-1830700-A // Tape perforator and transmitter // Hoover Ray ; Haupt Frank J. // Western Union Telegraph Co | |||
| Version 1 (current) | 630 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1830700-A // Tape perforator and transmitter // Hoover Ray ; Haupt Frank J. // Western Union Telegraph Co | ||||
| PDF File 1829653.pdf | 554 kB | Shaun Ewing | Oct 27, 1931 00:00 |
|
US-1829653-A // Means for sending alternating currents to multiplex lines // Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Oct 27, 1931 00:00 | US-1829653-A // Means for sending alternating currents to multiplex lines // Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 1828660.pdf | 176 kB | Shaun Ewing | Oct 20, 1931 00:00 |
|
US-1828660-A // Method of and apparatus for driving tuning forks // Homer Edward C. ; Buckingham William D. // Western Union Telegraph Co | |||
| Version 1 (current) | 176 kB | Shaun Ewing | Oct 20, 1931 00:00 | US-1828660-A // Method of and apparatus for driving tuning forks // Homer Edward C. ; Buckingham William D. // Western Union Telegraph Co | ||||
| PDF File 1827652.pdf | 349 kB | Shaun Ewing | Oct 13, 1931 00:00 |
|
US-1827652-A // Tape feed mechanism for printing telegraph apparatus // Haglund Hakon H. ; Dickey Albert W. // Western Union Telegraph Co | |||
| Version 1 (current) | 349 kB | Shaun Ewing | Oct 13, 1931 00:00 | US-1827652-A // Tape feed mechanism for printing telegraph apparatus // Haglund Hakon H. ; Dickey Albert W. // Western Union Telegraph Co | ||||
| PDF File 1826928.pdf | 562 kB | Shaun Ewing | Oct 13, 1931 00:00 |
|
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 | ||||
| PDF File 1826379.pdf | 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 | |||
| 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 1823761.pdf | 362 kB | Shaun Ewing | Sept 15, 1931 00:00 |
|
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 1818951.pdf | 236 kB | Shaun Ewing | Aug 11, 1931 00:00 |
|
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 1817738.pdf | 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 | |||
| 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 1817737.pdf | 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 | |||
| 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 1817717.pdf | 823 kB | Shaun Ewing | Aug 04, 1931 00:00 |
|
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 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 | ||||
| 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 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 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 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 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 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 |
