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Primary view of Oiling Device for Stock-Dies.
Thatcher, Frank
August 31, 1909
Primary view of Rotary Engine.
Schaefer, Herbert Clyde
March 31, 1908
Primary view of Calcining-Furnance.
Hughes, Godfrey
July 31, 1900
Primary view of Electrolytic Cell
Anderson, Henry S.
October 31, 1905
Primary view of Corn-Popper
Young, George B. & Young, Joseph H.
December 31, 1907
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