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Primary view of Steam-Engine Valve.
Ford, Andrew H.
September 17, 1895
Primary view of Process for Refining and Purifying Oils.
Lasher, David F.
September 15, 1910
Primary view of Headlight Control
Hartman, Reuben. E
September 12, 1916
Primary view of Penholder Attachment
Harmon, James W.
September 12, 1911
Primary view of Safety-can.
Patronell, John
September 2, 1919
Primary view of Thermostatic Signal
Lutcher, Henry J.
September 18, 1888
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