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| All Patents in class 433/130 | |||||
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| Number | Date | Patentee | Title | Type | |
| 553,124 | Jan. 14, 1896 | C.A. Meister | Angle Attachment for Dental Handpieces or other Attachment | corner drills | |
| 1,688,136 | Oct. 16, 1928 | A.P. Jurgensen, H.E. Chayes | Dental Tool Holder | dental tools | |