. United States Court of Appeals For the Ninth Circuit. WITNESSES ^,\\\\s J^^. fe\\\\\\^ [USipl ^:: .j< I ; ; I Jy^^ INVENTORS IffORNEY No. 769,431. I WITfJESSES PATENTED SEPT. 6, A. OAMMETT & F. E. CONCENTRATOR. AFPLIOATION FILED MAE. 29, 1898. 5 SHEETS-SHEET 4.

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