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. United States Court of Appeals For the Ninth Circuit. y fi -?^ No. 671,276. (No Model.) A. CONCENTRATOR. (Application filed Sept. 13, 1900 i -^^-q. S* Patented Apr. 2, 1901. 3 Sheets—Sheet ^^.W

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. United States Court of Appeals For the Ninth Circuit. y fi -?^ No. 671,276. (No Model.) A. CONCENTRATOR. (Application filed Sept. 13, 1900 i -^^-q. S* Patented Apr. 2, 1901. 3 Sheets—Sheet ^^.W

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