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| All Patents in class 433/128 | |||||
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| Number | Date | Patentee | Title | Type | |
| 339,595 | Apr. 06, 1886 | C.E. Stone | Drill Chuck | drill chucks | |
| 1,534,816 | Apr. 21, 1925 | W.L. Thiedemann | Dental Tool Holder | dental tools | |
| 1,688,136 | Oct. 16, 1928 | A.P. Jurgensen, H.E. Chayes | Dental Tool Holder | dental tools | |
| 2,701,914 | Feb. 15, 1955 | T. Dietrich | Tool Holder, Chiefly for Dentists' Tools | dental tools | |