72303838
Jul 29, 1968
Mar 3, 1970
VIBRATING METAL CONTAINERS-NAMELY, SEPARATORS FOR SCREENING MATERIALS, GRINDING MILLS FOR GRINDING MATERIALS, FINISHING MILLS FOR DEBURRING AND FINISHING METAL, CERAMIC AND PLASTIC PARTS, REACTORS FOR CONTACTING MATERIALS WITH HOT OR COLD GASES OR LIQUIDS, AND BLENDERS FOR MIXING TWO OR MORE MATERIALS
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