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| All Patents in class 72/452.7 | |||||
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| Number | Date | Patentee | Title | Type | |
| 575,790 | Jan. 26, 1897 | C.D. Rice | Forging Machine | forging apparatus and accessories | |
| 1,053,744 | Feb. 18, 1913 | J.H. Philips | Spring Hammer | riveting tools | |
| 1,075,950 | Oct. 14, 1913 | R.R. Smith | Spring Hammer | riveting tools | |
| 1,297,940 | Mar. 18, 1919 | A. Vincent | Trip Hammer | trip and helve hammers | |
| 1,798,082 | Mar. 24, 1931 | E.B. Grutzbach | Hammer attachment for electric drills | handheld power tool accessories | |