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All Patents of Type: boring heads
Patents 1 - 13 of 13
First set of recordsLast set of records
144,583Nov. 11, 1873J. WheelockImprovement in tool-holders and cutter-heads for boring-barsboring bars
552,065Dec. 24, 1895J.B. KingBoring Toolboring heads
757,494Apr. 19, 1904W. PohlmanExpansion Boring Toolboring heads
1,361,686Dec. 07, 1920M.C. ConwellToolboring heads
1,395,859Nov. 01, 1921H.V. MorinTool Holderboring heads
1,696,195Dec. 25, 1928A.F. FroussardCutter Headboring heads
1,769,230Jul. 01, 1930H.H. ManningRotary cutterboring bars
1,962,951Jun. 12, 1934M.C. ConwellTool Headboring heads
3,371,559Mar. 05, 1968J.A. SchollMeans for automatic tool feed and retraction control of boring and facing headsboring heads
3,599,517Aug. 17, 1971J. MüllerBoring and facing head for machine toolsboring heads
3,744,352Jul. 10, 1973J.A. SchollBoring and facing apparatusboring heads
3,800,637Apr. 02, 1974J.A. SchollBoring and facing apparatusboring heads
6,510,620Jan. 28, 2003R.G. BenderTool and method for the precision boring of holesboring heads
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