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| All Patents in class 164/342 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,146 | Jun. 26, 1841 | J. Luther | Casting Screws | foundry casting apparatus | |
| 1,286,375 | Dec. 03, 1918 | J.C. McLachlan | Method of producing cast shell-projectiles | rockets and grenades | |