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| All Patents in class 164/368 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,137,203 | Apr. 27, 1915 | G. Gorton | Mold for Rotary Valves | casting molds | |
| 1,215,564 | Feb. 13, 1917 | J.C. McLachlan | Mold for casting shells | rockets and grenades | |