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| All Patents in class 433/157 | |||||
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| Number | Date | Patentee | Title | Type | |
| 178X | Jul. 01, 1797 | T. Bruff, Sr. | Improvement in extracting teeth | dental tools | |
| 480,974 | Aug. 16, 1892 | C.M. Spencer | Nail-puller | nail extractors | |
| 1,361,219 | Dec. 07, 1920 | J.J. Bartenstein | Valve Spring Holder | valve spring tools | |