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| All Patents in class 76/DIG.012 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,185,259 | May 30, 1916 | C.H. Stephan | Emery-wheel dresser | grinder dressers | |
| 2,545,676 | Mar. 20, 1951 | L. Small | Diamond impregnated dressing tool | grinder dressers | |
| 2,921,485 | Jan. 19, 1960 | L. Small | Method of forming a diamond tool | grinder dressers | |