. United States Court of Appeals For the Ninth Circuit. . = No. 641,977. J. CONCENTRATOR. (Application filed Mar. 16, 1899. Patented Jan. 23, 1900. 4 Sheets—Sheet 2. ^IViUwofiv^ ^ * iiii ? If at^ :!>5 lO it ^M Wui 1 : i i N3 = i h ^ / r: = : ^ II 1 ^■ Up 1 iff mwm 1 ■^li ^ ^^^^^t^^^^a/^^\!?-^e.^;^^ No. 641,977. (No Model. J. CONCENTRATOR. (Application filed Mar. 16, Patented Jan. 23, 1900. 4 Sheets—Sheet 3 ^•^- c?^^yMs\

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