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All Patents of Type: boring bars
Patents 1 - 15 of 17
First set of recordsNext set of recordsLast set of records
108,310Oct. 11, 1870J. WheelockImprovement in boring apparatusboring bars
144,583Nov. 11, 1873J. WheelockImprovement in tool-holders and cutter-heads for boring-barsboring bars
GB-191,118,612Apr. 18, 1912C.W. CrossleyImprovements in boring, grinding and the like machine toolsboring bars
2,330,692Sep. 28, 1943C.B. De VliegBoring toolboring bars
2,537,517Jan. 09, 1951C.B. De VliegMetal cutting toolboring bars
2,654,610Oct. 06, 1953H.R. De VliegOffset boring headboring bars
2,793,547May 28, 1957M.L. Benjamin, F.E. WinnenAdjustable bit boring barboring bars
2,849,902Sep. 02, 1958C.B. De Vlieg, A.N. SweenyPresetting boring bar and tool holderboring bars
2,901,935Sep. 01, 1959A.P. Keller, Jr., I.C. SimonFacing headsmilling machine cutters
2,985,040May 23, 1961W.R. Border, Jr.Variable Cylinder Boring Jigboring bars
3,044,323Jul. 17, 1962A.N. SweenyAdjustable boring headboring bars
3,169,416Feb. 16, 1965F.H. Burkhardt, E. CarlsonBoring head and method of using sameboring bars
3,217,569Nov. 16, 1965A.N. SweenyMetal cutting toolboring bars
3,292,238Dec. 20, 1966C.B. De Vlieg, A.N. SweenyAdjustable cutting toolboring bars
3,313,187Apr. 11, 1967M.L. Benjamin, D.D. WalkerBoring bar insertboring bars
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