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| All Patents in class 164/206 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,181,492 | May 02, 1916 | H. Tscherning | Molding-machine | ||
| 1,213,979 | Jan. 30, 1917 | H. Tscherning | Sand-molding apparatus | ||
| 1,524,117 | Jan. 27, 1925 | H. Tscherning | Molding machine | ||
| 1,931,185 | Oct. 17, 1933 | V.S. Firestone | Molding machine | foundryman | |