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 2174731.pdf | 3.08 MB | Shaun Ewing | Oct 03, 1939 00:00 |
|
US-2174731-A // Combined telegraph printer and perforator // Dirkes Robert F. ; Wheeler Evan R. // Western Union Telegraph Co | |||
| Version 1 (current) | 3.08 MB | Shaun Ewing | Oct 03, 1939 00:00 | US-2174731-A // Combined telegraph printer and perforator // Dirkes Robert F. ; Wheeler Evan R. // Western Union Telegraph Co | ||||
| PDF File 2176065.pdf | 866 kB | Shaun Ewing | Oct 17, 1939 00:00 |
|
US-2176065-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | |||
| Version 1 (current) | 866 kB | Shaun Ewing | Oct 17, 1939 00:00 | US-2176065-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | ||||
| PDF File 2176442.pdf | 298 kB | Shaun Ewing | Oct 17, 1939 00:00 |
|
US-2176442-A // Signal producing means // Wise Raleigh J. // Western Union Telegraph Co | |||
| Version 1 (current) | 298 kB | Shaun Ewing | Oct 17, 1939 00:00 | US-2176442-A // Signal producing means // Wise Raleigh J. // Western Union Telegraph Co | ||||
| PDF File 2176901.pdf | 1.04 MB | Shaun Ewing | Oct 24, 1939 00:00 |
|
US-2176901-A // Multichannel telegraph system // Jr. Philo Holcomb, ; Boggs Albert // Western Union Telegraph Co | |||
| Version 1 (current) | 1.04 MB | Shaun Ewing | Oct 24, 1939 00:00 | US-2176901-A // Multichannel telegraph system // Jr. Philo Holcomb, ; Boggs Albert // Western Union Telegraph Co | ||||
| PDF File 217781.pdf | 220 kB | Shaun Ewing | Jul 22, 1879 00:00 |
|
US-217781-A // Improvement in sextuplex telegraphs // Thomas A. Edison, Of New Jeesey // Westeen Union Teleg-baph Company, Oe New Yoek, N. Y. | |||
| Version 1 (current) | 220 kB | Shaun Ewing | Jul 22, 1879 00:00 | US-217781-A // Improvement in sextuplex telegraphs // Thomas A. Edison, Of New Jeesey // Westeen Union Teleg-baph Company, Oe New Yoek, N. Y. | ||||
| PDF File 217782.pdf | 153 kB | Shaun Ewing | Jul 22, 1879 00:00 |
|
US-217782-A // Improvement in duplex telegraphs // Thomas A. Edison, Of New Jersey // Western Union Telegraph Co, Op New York, N. Y. | |||
| Version 1 (current) | 153 kB | Shaun Ewing | Jul 22, 1879 00:00 | US-217782-A // Improvement in duplex telegraphs // Thomas A. Edison, Of New Jersey // Western Union Telegraph Co, Op New York, N. Y. | ||||
| PDF File 2179690.pdf | 546 kB | Shaun Ewing | Nov 14, 1939 00:00 |
|
US-2179690-A // Regenerative repeater for telegraph systems // Erickson George L. ; Teter Paul E. // Western Union Telegraph Co | |||
| Version 1 (current) | 546 kB | Shaun Ewing | Nov 14, 1939 00:00 | US-2179690-A // Regenerative repeater for telegraph systems // Erickson George L. ; Teter Paul E. // Western Union Telegraph Co | ||||
| PDF File 2181533.pdf | 425 kB | Shaun Ewing | Nov 28, 1939 00:00 |
|
US-2181533-A // Method of and means for recording signals electrically // Kline Bernard L. ; Parrott Robert D. ; Erickson George L. // Western Union Telegraph Co | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Nov 28, 1939 00:00 | US-2181533-A // Method of and means for recording signals electrically // Kline Bernard L. ; Parrott Robert D. ; Erickson George L. // Western Union Telegraph Co | ||||
| PDF File 2186006.pdf | 1.89 MB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186006-A // Balancing duplex circuit // Buckingham William D. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.89 MB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186006-A // Balancing duplex circuit // Buckingham William D. // Western Union Telegraph Co | ||||
| PDF File 2186895.pdf | 1.30 MB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186895-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186895-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | ||||
| PDF File 2186896.pdf | 976 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186896-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | |||
| Version 1 (current) | 976 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186896-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | ||||
| PDF File 2186897.pdf | 631 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186897-A // Telautograph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | |||
| Version 1 (current) | 631 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186897-A // Telautograph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | ||||
| PDF File 2186898.pdf | 984 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186898-A // Telegraph storage system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | |||
| Version 1 (current) | 984 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186898-A // Telegraph storage system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | ||||
| PDF File 2186899.pdf | 920 kB | Shaun Ewing | Jan 09, 1940 00:00 |
|
US-2186899-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | |||
| Version 1 (current) | 920 kB | Shaun Ewing | Jan 09, 1940 00:00 | US-2186899-A // Telegraph system // D'Humy Fernand E. ; Franklin Lawrence W. // Western Union Telegraph Co | ||||
| PDF File 2187360.pdf | 1.51 MB | Shaun Ewing | Jan 16, 1940 00:00 |
|
US-2187360-A // Telegraph system and apparatus // Myer Percy L. ; Wheeler Evan R. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.51 MB | Shaun Ewing | Jan 16, 1940 00:00 | US-2187360-A // Telegraph system and apparatus // Myer Percy L. ; Wheeler Evan R. // Western Union Telegraph Co | ||||
| PDF File 2189660.pdf | 329 kB | Shaun Ewing | Feb 06, 1940 00:00 |
|
US-2189660-A // Power level indicator // Boudreau Anthony P. J. // Western Union Telegraph Co | |||
| Version 1 (current) | 329 kB | Shaun Ewing | Feb 06, 1940 00:00 | US-2189660-A // Power level indicator // Boudreau Anthony P. J. // Western Union Telegraph Co | ||||
| PDF File 2193809.pdf | 3.77 MB | Shaun Ewing | Mar 19, 1940 00:00 |
|
US-2193809-A // Signaling system and apparatus therefor // Dirkes Robert F. ; Hoover Ray ; Wheeler Evan R. // Western Union Telegraph Co | |||
| Version 1 (current) | 3.77 MB | Shaun Ewing | Mar 19, 1940 00:00 | US-2193809-A // Signaling system and apparatus therefor // Dirkes Robert F. ; Hoover Ray ; Wheeler Evan R. // Western Union Telegraph Co | ||||
| PDF File 2193810.pdf | 2.71 MB | Shaun Ewing | Mar 19, 1940 00:00 |
|
US-2193810-A // Telegraph exchange system // Wheeler Evan R. ; Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 2.71 MB | Shaun Ewing | Mar 19, 1940 00:00 | US-2193810-A // Telegraph exchange system // Wheeler Evan R. ; Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 2193811.pdf | 2.52 MB | Shaun Ewing | Mar 19, 1940 00:00 |
|
US-2193811-A // Signaling system and apparatus // Blanchard Rolla F. ; Blanton William B. ; Browne Harry L. // Western Union Telegraph Co | |||
| Version 1 (current) | 2.52 MB | Shaun Ewing | Mar 19, 1940 00:00 | US-2193811-A // Signaling system and apparatus // Blanchard Rolla F. ; Blanton William B. ; Browne Harry L. // Western Union Telegraph Co | ||||
| PDF File 2193812.pdf | 1.26 MB | Shaun Ewing | Mar 19, 1940 00:00 |
|
US-2193812-A // Telegraph exchange system // Blanton William B. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Mar 19, 1940 00:00 | US-2193812-A // Telegraph exchange system // Blanton William B. // Western Union Telegraph Co |
