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All Patents in class 451/506
Patents 1 - 10 of 10
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,221,173Nov. 12, 1940R.S. GutsellSanding or polishing wheelgrinding wheels
2,377,880Jun. 12, 1945R.S. GutsellCentrifugal abrasive-sheet holding wheelgrinding wheels
2,410,536Nov. 05, 1946A. VonnegutExpansible wheelsanding machines
2,415,308Feb. 04, 1947J.O. SchulteCentrifugally expansible abrasive wheelsanding machines
2,432,731Dec. 16, 1947O.S. De HavenExpanding head for abrasivessanding machines
2,505,680Apr. 25, 1950A.W. MallPneumatic sanding wheel
2,627,705Feb. 10, 1953G.W. BrunerSander headsanding machines
2,801,504Aug. 06, 1957J.R. MacIntosh, S.A. MercurioAbrasive wheel structuregrinding wheels
2,874,519Feb. 24, 1959J.R. MacIntosh, S.A. MercurioExpansible abrasive wheelgrinding wheels
2,963,833Dec. 13, 1960J.R. MacIntosh, S.A. MercurioExpansible wheel and hub structuregrinding wheels
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