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| All Patents in class 433/114 | |||||
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| Number | Date | Patentee | Title | Type | |
| 145,098 | Dec. 02, 1873 | C.E. Edwards | Dental Drilling Machines | dental apparatus | |
| 532,145 | Jan. 08, 1895 | J. Defatsch | Hand drill | hand drills | |