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All Patents of Type: vertical boring mills
Patents 1 - 15 of 57
First set of recordsNext set of recordsLast set of records
GB-180,202,673Dec. 22, 1802M. BillingsleyMachine for boring cylindersvertical boring mills
36,112Aug. 05, 1862W. SellersImprovement in boring-mills for metalvertical boring mills
113,651Apr. 11, 1871G.A. Gray, Jr.Improvement in turning and boring-millsvertical boring mills
124,091Feb. 27, 1872J. SimpsonImprovement in Boring Machinesvertical boring mills
142,694Sep. 09, 1873F.E. HahnImprovement in boring-millsvertical boring mills
275,604Apr. 10, 1883E.F. DebouttevilleMachine for Shaping, Drilling, Boring and Facingmetal slotting machines
299,496May 27, 1884J. RichardsMetal Boring and Slotting Machinevertical boring mills
454,801Jun. 23, 1891W. LewisBoring and Turning Millsvertical boring mills
497,738May 16, 1893A. WoodBoring-millvertical boring mills
511,736Dec. 26, 1893C.L. LibbyTaper attachment and feed mechanism for vertical boring millvertical boring mills
514,719Feb. 13, 1894C.L. LibbyBoring-millvertical boring mills
724,514Apr. 07, 1903W. SellersMachine Toolvertical boring mills
892,107Jun. 30, 1908G.R. WillisChange Speed Gearmetalworking variable speed mechanisms
981,724Jan. 17, 1911L.H. VoldAutomatic Chuck for Boring and Turning Millsvertical boring mills
995,322Jun. 13, 1911E.P. Bullard, Jr.Changeable Driving Connection for Machine Toolsmetalworking machine mechanisms
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