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All Patents in class 209/388
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
741,370Oct. 13, 1903J.G. PetersonFlour-bolting brush
752,448Feb. 16, 1904W.D. GrayShaking-sieve and cleaner therefor
  2,166,438Jul. 18, 1939D.G. JensenFlour sifting machine
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