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All Patents in class 209/388 | |||||
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Number | Date | Patentee | Title | Type | |
741,370 | Oct. 13, 1903 | J.G. Peterson | Flour-bolting brush | miller | |
752,448 | Feb. 16, 1904 | W.D. Gray | Shaking-sieve and cleaner therefor | miller | |
2,166,438 | Jul. 18, 1939 | D.G. Jensen | Flour sifting machine |