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| All Patents in class 422/309 | |||||
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| Number | Date | Patentee | Title | Type | |
| 270,291 | Jan. 09, 1883 | S.B. Dover | Apparatus for extracting oil from oleaginous seeds, &c. | seed or nut oil apparatus | |
| 1,106,586 | Aug. 11, 1914 | R.A. Trace, G.A. Sauer, Jr. | Cooker for seeds and the like | seed or nut oil apparatus | |
| 1,106,597 | Aug. 11, 1914 | R.A. Trace | Cooker | seed or nut oil apparatus | |
| 1,910,485 | May 23, 1933 | R.A. Trace | Cooker | seed or nut oil apparatus | |