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Primary view of Locomotive Driving-Box.
Simmons, Arthur, W.
May 4, 1920
Primary view of Pump-Actuating Mechanism.
Dean, Robert A.
April 19, 1921
Primary view of Sod Cutting and Disintegrating Machine.
Thompson, Robert L.
August 17, 1920
Primary view of Adjustable Flat Die.
Wright, John G.
May 10, 1921
Primary view of Building Construction.
Walker, Isham P.
November 8, 1921
Primary view of Ink-Bottle
Kayser, Mary Louise
May 10, 1921
Primary view of Adjustable End Die.
Wright, John G.
February 8, 1921
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