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Primary view of Well Stuffing-Box.
Church, George W.
November 16, 1915
Primary view of Lavatory.
Kavanagh, Joseph A.
April 6, 1915
Primary view of Gripping Device for Well-Boring Apparatus
Myers, George S.
June 15, 1915
Primary view of Pipe Clamping Device
Lincoln, Robert A.
August 25, 1915
Primary view of Pipe Tongs Support.
Hoffer, Temple B.
August 3, 1915
Primary view of Sprinkler
Houston, Hugh Edward
September 7, 1915
Primary view of Drill-Collar.
Myers, George S.
March 16, 1915
Primary view of Engine Control
Craddock, L. J.
May 29, 1915
Primary view of Extension Pedal Attachment
Harrington, Fred
February 16, 1915
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