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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1773336.pdf | 724 kB | Shaun Ewing | Aug 19, 1930 00:00 |
|
US-1773336-A // Central-battery duplex telegraph system // Atherton Albert // Western Union Telegraph Co | |||
| Version 1 (current) | 724 kB | Shaun Ewing | Aug 19, 1930 00:00 | US-1773336-A // Central-battery duplex telegraph system // Atherton Albert // Western Union Telegraph Co | ||||
| PDF File 1773370.pdf | 382 kB | Shaun Ewing | Aug 19, 1930 00:00 |
|
US-1773370-A // Reducing interference in submarine cables // Milnor Joseph W. ; Cramer Clifford H. // Western Union Telegraph Co | |||
| Version 1 (current) | 382 kB | Shaun Ewing | Aug 19, 1930 00:00 | US-1773370-A // Reducing interference in submarine cables // Milnor Joseph W. ; Cramer Clifford H. // Western Union Telegraph Co | ||||
| PDF File 1773371.pdf | 205 kB | Shaun Ewing | Aug 19, 1930 00:00 |
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US-1773371-A // Duplex telegraph system // Milnor Joseph W. ; Cannon William D. // Western Union Telegraph Co | |||
| Version 1 (current) | 205 kB | Shaun Ewing | Aug 19, 1930 00:00 | US-1773371-A // Duplex telegraph system // Milnor Joseph W. ; Cannon William D. // Western Union Telegraph Co | ||||
| PDF File 1774292.pdf | 286 kB | Shaun Ewing | Aug 26, 1930 00:00 |
|
US-1774292-A // Moistureproof and gas-tight dam for lead-sheath cables // Reed Leland A. // Western Union Telegraph Co | |||
| Version 1 (current) | 286 kB | Shaun Ewing | Aug 26, 1930 00:00 | US-1774292-A // Moistureproof and gas-tight dam for lead-sheath cables // Reed Leland A. // Western Union Telegraph Co | ||||
| PDF File 1774971.pdf | 1.18 MB | Shaun Ewing | Sept 02, 1930 00:00 |
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US-1774971-A // Coupon-printing telegraph machine // Haupt Frank J. ; Sortore Emerson J. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.18 MB | Shaun Ewing | Sept 02, 1930 00:00 | US-1774971-A // Coupon-printing telegraph machine // Haupt Frank J. ; Sortore Emerson J. // Western Union Telegraph Co | ||||
| PDF File 1775686.pdf | 482 kB | Shaun Ewing | Sept 16, 1930 00:00 |
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US-1775686-A // Measuring resistance of ground connections // Milnor Joseph W. // Western Union Telegraph Co | |||
| Version 1 (current) | 482 kB | Shaun Ewing | Sept 16, 1930 00:00 | US-1775686-A // Measuring resistance of ground connections // Milnor Joseph W. // Western Union Telegraph Co | ||||
| PDF File 1775687.pdf | 671 kB | Shaun Ewing | Sept 16, 1930 00:00 |
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US-1775687-A // Measuring the efficiency of telegraph transmission // Milnor Joseph W. ; Bramhall Fay B. // Western Union Telegraph Co | |||
| Version 1 (current) | 671 kB | Shaun Ewing | Sept 16, 1930 00:00 | US-1775687-A // Measuring the efficiency of telegraph transmission // Milnor Joseph W. ; Bramhall Fay B. // Western Union Telegraph Co | ||||
| PDF File 1776068.pdf | 278 kB | Shaun Ewing | Sept 16, 1930 00:00 |
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US-1776068-A // Selective pneumatic-tube carrier // Francis William H. // Western Union Telegraph Co | |||
| Version 1 (current) | 278 kB | Shaun Ewing | Sept 16, 1930 00:00 | US-1776068-A // Selective pneumatic-tube carrier // Francis William H. // Western Union Telegraph Co | ||||
| PDF File 1776219.pdf | 240 kB | Shaun Ewing | Sept 16, 1930 00:00 |
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US-1776219-A // Signal-relay system // Fluharty William G. // Western Union Telegraph Co | |||
| Version 1 (current) | 240 kB | Shaun Ewing | Sept 16, 1930 00:00 | US-1776219-A // Signal-relay system // Fluharty William G. // Western Union Telegraph Co | ||||
| PDF File 1776697.pdf | 771 kB | Shaun Ewing | Sept 23, 1930 00:00 |
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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 1778679.pdf | 1.25 MB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778679-A // Call-distributing system // Light George G. ; Drake Herbert W. ; Rudd Maurice A. ; Blanton William B. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778679-A // Call-distributing system // Light George G. ; Drake Herbert W. ; Rudd Maurice A. ; Blanton William B. // Western Union Telegraph Co | ||||
| PDF File 1780118.pdf | 474 kB | Shaun Ewing | Oct 28, 1930 00:00 |
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US-1780118-A // Combined sectional operating-table unit and conveyer section // D'Humy Fernand E. // Western Union Telegraph Co | |||
| Version 1 (current) | 474 kB | Shaun Ewing | Oct 28, 1930 00:00 | US-1780118-A // Combined sectional operating-table unit and conveyer section // D'Humy Fernand E. // Western Union Telegraph Co | ||||
| PDF File 1784967.pdf | 735 kB | Shaun Ewing | Dec 16, 1930 00:00 |
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US-1784967-A // Single selector relay for pneumatic-tube systems // Mcguinness William V. // Western Union Telegraph Co | |||
| Version 1 (current) | 735 kB | Shaun Ewing | Dec 16, 1930 00:00 | US-1784967-A // Single selector relay for pneumatic-tube systems // Mcguinness William V. // Western Union Telegraph Co | ||||
| PDF File 1784968.pdf | 514 kB | Shaun Ewing | Dec 16, 1930 00:00 |
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US-1784968-A // Pneumatic-tube system // Mcguinness William V. // Western Union Telegraph Co | |||
| Version 1 (current) | 514 kB | Shaun Ewing | Dec 16, 1930 00:00 | US-1784968-A // Pneumatic-tube system // Mcguinness William V. // Western Union Telegraph Co | ||||
| PDF File 1786343.pdf | 400 kB | Shaun Ewing | Dec 23, 1930 00:00 |
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US-1786343-A // Universal drag conveyer // Griffith Francis // Western Union Telegraph Co | |||
| Version 1 (current) | 400 kB | Shaun Ewing | Dec 23, 1930 00:00 | US-1786343-A // Universal drag conveyer // Griffith Francis // 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 1788477.pdf | 1.17 MB | Shaun Ewing | Jan 13, 1931 00:00 |
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US-1788477-A // Interpolating signal in high-speed telegraph circuits // Woodward Marion H. // Western Union Telegraph Co | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Jan 13, 1931 00:00 | US-1788477-A // Interpolating signal in high-speed telegraph circuits // Woodward Marion H. // Western Union Telegraph Co | ||||
| PDF File 1790150.pdf | 691 kB | Shaun Ewing | Jan 27, 1931 00:00 |
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US-1790150-A // Means of phasing // Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 691 kB | Shaun Ewing | Jan 27, 1931 00:00 | US-1790150-A // Means of phasing // Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 1793319.pdf | 887 kB | Shaun Ewing | Feb 17, 1931 00:00 |
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US-1793319-A // Method of multiple transmission // Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | |||
| Version 1 (current) | 887 kB | Shaun Ewing | Feb 17, 1931 00:00 | US-1793319-A // Method of multiple transmission // Hoover Ray ; Dirkes Robert F. // Western Union Telegraph Co | ||||
| PDF File 1793953.pdf | 1.08 MB | Shaun Ewing | Feb 24, 1931 00:00 |
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US-1793953-A // Drag conveyer // D'Humy Fernand E. ; Plausics Alexander // Western Union Telegraph Co | |||
| Version 1 (current) | 1.08 MB | Shaun Ewing | Feb 24, 1931 00:00 | US-1793953-A // Drag conveyer // D'Humy Fernand E. ; Plausics Alexander // Western Union Telegraph Co |
