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All Patents of Type: oilfield machinery
Patents 1 - 6 of 6
First set of recordsLast set of records
233,231Oct. 12, 1880J.G. Benton, H.F. GaskillOil Pumpoilfield machinery
626,933Jun. 13, 1899J. ReidApparatus for Drilling Wellsoilfield machinery
685,641Oct. 29, 1901J. ReidApparatus for Drilling and Operating Oil Wellsoilfield machinery
1,129,229Feb. 23, 1915W.O. PlattBearing for Oil Well Jacks and Swing Leversoilfield machinery
1,253,966Jan. 15, 1918F.W. HarrisProcess and Apparatus for Treating Drill Pipeoilfield machinery
1,900,384Mar. 07, 1933M. KahrPower Plant for Drilling Apparatusoilfield machinery
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