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| All Patents in class 433/165 | |||||
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| Number | Date | Patentee | Title | Type | |
| 482,558 | Sep. 13, 1892 | L. Maillard | Dental drill | dental apparatus | |
| 1,827,511 | Oct. 13, 1931 | W.H. Evans | Reamer | valve and seat maintenance | |
| 2,562,327 | Jul. 31, 1951 | J.C. Moore | Mandrel | grinders | |