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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1814899.pdf | 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 | |||
| 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 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 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 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 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 1810809.pdf | 635 kB | Shaun Ewing | Jun 16, 1931 00:00 |
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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 1809722.pdf | 455 kB | Shaun Ewing | Jun 09, 1931 00:00 |
|
US-1809722-A // Superposed telegraph system // Morgenstern Ronald V. ; Teter Paul E. // Western Union Telegraph Co | |||
| Version 1 (current) | 455 kB | Shaun Ewing | Jun 09, 1931 00:00 | US-1809722-A // Superposed telegraph system // Morgenstern Ronald V. ; Teter Paul E. // Western Union Telegraph Co | ||||
| PDF File 1809664.pdf | 893 kB | Shaun Ewing | Jun 09, 1931 00:00 |
|
US-1809664-A // Correcting distortion and interpolating impulses in cable telegraphy // Angel Herbert // Western Union Telegraph Co | |||
| Version 1 (current) | 893 kB | Shaun Ewing | Jun 09, 1931 00:00 | US-1809664-A // Correcting distortion and interpolating impulses in cable telegraphy // Angel Herbert // Western Union Telegraph Co | ||||
| PDF File 1809560.pdf | 671 kB | Shaun Ewing | Jun 09, 1931 00:00 |
|
US-1809560-A // Artificial line network // Milnor Joseph W. // Western Union Telegraph Co | |||
| Version 1 (current) | 671 kB | Shaun Ewing | Jun 09, 1931 00:00 | US-1809560-A // Artificial line network // Milnor Joseph W. // Western Union Telegraph Co | ||||
| PDF File 1807368.pdf | 2.00 MB | Shaun Ewing | May 26, 1931 00:00 |
|
US-1807368-A // Method of and apparatus for operating cable telegraph systems // Angel Herbert ; Robinson James W. // Western Union Telegraph Co | |||
| Version 1 (current) | 2.00 MB | Shaun Ewing | May 26, 1931 00:00 | US-1807368-A // Method of and apparatus for operating cable telegraph systems // Angel Herbert ; Robinson James W. // Western Union Telegraph Co | ||||
| PDF File 1805374.pdf | 422 kB | Shaun Ewing | May 12, 1931 00:00 |
|
US-1805374-A // Distributor-transmitter for simplex telegraph circuits // Rothermel Samuel W. // Western Union Telegraph Co | |||
| Version 1 (current) | 422 kB | Shaun Ewing | May 12, 1931 00:00 | US-1805374-A // Distributor-transmitter for simplex telegraph circuits // Rothermel Samuel W. // Western Union Telegraph Co | ||||
| PDF File 1805351.pdf | 617 kB | Shaun Ewing | May 12, 1931 00:00 |
|
US-1805351-A // Repeating apparatus for concentration units // Atherton Albert // Western Union Telegraph Co | |||
| Version 1 (current) | 617 kB | Shaun Ewing | May 12, 1931 00:00 | US-1805351-A // Repeating apparatus for concentration units // Atherton Albert // Western Union Telegraph Co | ||||
| PDF File 1805349.pdf | 342 kB | Shaun Ewing | May 12, 1931 00:00 |
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US-1805349-A // Signal distortion indicator // Wise Raleigh J. // Western Union Telegraph Co | |||
| Version 1 (current) | 342 kB | Shaun Ewing | May 12, 1931 00:00 | US-1805349-A // Signal distortion indicator // Wise Raleigh J. // Western Union Telegraph Co | ||||
| PDF File 1804327.pdf | 628 kB | Shaun Ewing | May 05, 1931 00:00 |
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US-1804327-A // Concentration circuit for simplex printers // Drake Herbert W. ; Blanton William B. // Western Union Telegraph Co | |||
| Version 1 (current) | 628 kB | Shaun Ewing | May 05, 1931 00:00 | US-1804327-A // Concentration circuit for simplex printers // Drake Herbert W. ; Blanton William B. // Western Union Telegraph Co | ||||
| PDF File 1804302.pdf | 1.32 MB | Shaun Ewing | May 05, 1931 00:00 |
|
US-1804302-A // High speed fork regenerating repeater for telegraph systems // Angel Herbert ; Robinson James W. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | May 05, 1931 00:00 | US-1804302-A // High speed fork regenerating repeater for telegraph systems // Angel Herbert ; Robinson James W. // Western Union Telegraph Co | ||||
| PDF File 1803304.pdf | 466 kB | Shaun Ewing | Apr 28, 1931 00:00 |
|
US-1803304-A // Call signal and motor control for simplex printers // Rothermel Samuel W. ; Hewitt Ernest W. // Western Union Telegraph Co | |||
| Version 1 (current) | 466 kB | Shaun Ewing | Apr 28, 1931 00:00 | US-1803304-A // Call signal and motor control for simplex printers // Rothermel Samuel W. ; Hewitt Ernest W. // Western Union Telegraph Co | ||||
| PDF File 1802244.pdf | 871 kB | Shaun Ewing | Apr 21, 1931 00:00 |
|
US-1802244-A // Duplex balance indicator // Fluharty William G. // Western Union Telegraph Co | |||
| Version 1 (current) | 871 kB | Shaun Ewing | Apr 21, 1931 00:00 | US-1802244-A // Duplex balance indicator // Fluharty William G. // Western Union Telegraph Co | ||||
| PDF File 1802240.pdf | 854 kB | Shaun Ewing | Apr 21, 1931 00:00 |
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US-1802240-A // Operating simplex printers in a multiplex system // Dirkes Robert F. ; Kimball Vernon R. ; Long James W. // Western Union Telegraph Co | |||
| Version 1 (current) | 854 kB | Shaun Ewing | Apr 21, 1931 00:00 | US-1802240-A // Operating simplex printers in a multiplex system // Dirkes Robert F. ; Kimball Vernon R. ; Long James W. // Western Union Telegraph Co | ||||
| PDF File 1801906.pdf | 966 kB | Shaun Ewing | Apr 21, 1931 00:00 |
|
US-1801906-A // Belt conveyer // D'Humy Fernand E. ; Birkmeyer Paul J. ; Griffith Francis // Western Union Telegraph Co | |||
| Version 1 (current) | 966 kB | Shaun Ewing | Apr 21, 1931 00:00 | US-1801906-A // Belt conveyer // D'Humy Fernand E. ; Birkmeyer Paul J. ; Griffith Francis // Western Union Telegraph Co | ||||
| PDF File 1801884.pdf | 834 kB | Shaun Ewing | Apr 21, 1931 00:00 |
|
US-1801884-A // Telegraph coupon printer // Sortore Emerson J. // Western Union Telegraph Co | |||
| Version 1 (current) | 834 kB | Shaun Ewing | Apr 21, 1931 00:00 | US-1801884-A // Telegraph coupon printer // Sortore Emerson J. // Western Union Telegraph Co |
