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| All Patents in class 83/515 | |||||
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| Number | Date | Patentee | Title | Type | |
| 925,348 | Jun. 15, 1909 | H.N. Kluting | Combined Punching and Shearing Mchine | metal punching machines | |
| 1,185,838 | Jun. 06, 1916 | G. Sears | Punch and shearing machine | metal punching machines | |
| 1,981,695 | Nov. 20, 1934 | S.N. Gundlach | Shingle Cutter | splitting and shearing machinery | |
| 5,170,689 | Dec. 15, 1992 | J. Dvorak | Metal working machine | metal punching machines | |