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Primary view of Oil Well Screen.
Dobson, John A.
February 14, 1922
Primary view of Can Opener
Minor, Robert B.
February 14, 1922
Primary view of Gas Stove.
Wood, Thomas E.
February 14, 1922
Primary view of Writing Pen.
Block, Henry, 1875-1939
February 14, 1922
Primary view of Drill Bit
Childs, William L.
February 14, 1922
Primary view of Pneumatic Disk Gin.
Garner, James C.
February 14, 1922
Primary view of Safety Apparatus.
Duran, Arturo
February 14, 1922
Primary view of Seed Cleaner
Garner, James C
February 14, 1922
Primary view of Cotton Cleaner and Separator.
Hillmann, Charles
February 14, 1922
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