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Primary view of Wrench.
Hooks, George W.
August 5, 1890
Primary view of Knee and Head Block for Saw Mills.
Willis, George F.
April 29, 1890
Primary view of Valve Structure for Oil-Wells.
McEvoy, John Philip
September 19, 1919
Primary view of Machine for Cleaning Pipe-Lines
Kinzbach, Frank
July 1, 1919
Primary view of Water-Heater.
Hardie, Jeffie Watkins
April 5, 1910
Primary view of Log-Cart.
Moon, Robert G.
February 2, 1897
Primary view of Well Pumping Apparatus
Stephenson, William M.
September 29, 1908
Primary view of Log-Turner
Ferris, Henry Murry & Gallon, William
May 10, 1887
Primary view of Mail-Box
Myer, Clayton Pittinger
June 4, 1901
Primary view of Insect Destoyer
Sewell, James H.
December 29, 1903
Primary view of Mechanical Toy Hoop
Giesecke, Leo
September 5, 1916
Primary view of Pump.
Wintz, James Philip
March 30, 1897
Primary view of Hydraulic Swivel
Thomson, Alexander & McLaughlin, Malacha Joseph
September 26, 1905
Primary view of Standing-Valve
Henderson, Andrew J.
unknown creation date
Primary view of Oil Well Strainer
Hardin, Otis & Daniels, Veerin B.
October 24, 1916
Primary view of Rail Joint
Walker, Asa
November 21, 1916
Primary view of Stirrup
Hooks, George W.
August 17, 1909
Primary view of Nut-Lock
Lance, Andrew M.
May 21, 1912
Primary view of Pump-Jack
Seybert, Guy W.
April 23, 1912
Primary view of Pump Controlling Means
Small, William
August 23, 1904
Primary view of Process For Treating Petroleum-Oils
Wintz, James Philip
December 19, 1905
Primary view of Stand-Value for Oil-Well Pumps.
Slaughter, George W., Jr.
September 24, 1918
Primary view of Standing-Valve Structure.
Ewing, Samuel D.
May 7, 1918
Primary view of Tool-Joint.
Stafford, George A. & Stafford, Roy M.
June 29, 1920
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