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Primary view of Adjustable Book-Cover
Toland, Thomas L.
September 28, 1920
Primary view of Lock and Key.
Dove, Bascom A.
June 28, 1921
Primary view of Draft-Equalizer
Dudley, Thomas J.
September 28, 1920
Primary view of Vegetable-Grading Apparatus.
Rigney, Samuel C.
June 28, 1921
Primary view of Electric Hairbrush
Harvey, Birdie
November 28, 1922
Primary view of Refrigerator-Door.
Jurek, Martin
June 28, 1921
Primary view of Process and Apparatus for the Utilization of Heat in Oil-Engines.
Lucke, Herbert R.
June 28, 1921
Primary view of Railroad Signal
Harrell, William H.
December 28, 1920
Primary view of Ventilated Body-Garment.
Jenkins, William M. & Vaughan, William H.
December 28, 1920
Primary view of Automobile-Bed.
Turner, John S.
December 28, 1920
Primary view of Curing-House.
Vaughan, Robert B. & Love, Ralph M.
September 28, 1920
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