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All Patents in class 451/212
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
990,373Apr. 25, 1911H.J. MitchellPlaner-knife sharpenerwoodworking machine sharpening mechanisms
1,261,669Apr. 02, 1918W.E. WrightSawing Apparatus
2,252,877Aug. 19, 1941C. BaldenhoferWay Grinding Machinesurface grinders
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