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All Patents in class 29/530 | |||||
Number | Date | Patentee | Title | Type | |
1,515,266 | Nov. 11, 1924 | R.C. Mitchell | Mounting for shaft bearings | bench or pedestal grinders | |
1,900,922 | Mar. 14, 1933 | L.R. Evans | Gripping Face for Chucks and Method Of Making the Same | tool holding collets |