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Primary view of Pump
Kerr, Michael A.
November 28, 1922
Primary view of Rope-Socket.
McConnell, Scott Russell
May 28, 1917
Primary view of Pipe Tongs.
Hill, Richard D.
June 28, 1921
Primary view of Friction Transmission Mechanism.
McDermott, Henry
March 28, 1921
Primary view of Threading Apparatus For Pipes.
Adkins, Otto O.
December 28, 1920
Primary view of Dry Closet
Pyle, Eben W.
November 28, 1916
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