Show 0 PATENTS RECENTLY ISSUED reported for the mining review by davis davis patent attorneys washington D C car for transporting ore or other material wm C carr buffalo N Y amalgamator herbert A corliss grants pass oreg ore separating or concentrating apparatus george F godley philadelphia pa hydraulic separator walter F smith philadelphia pa process for treating certain ores herbert S auerbach new york N Y slime feeding device for concentrators joseph B green wallace idaho treatment of copper and copper nickel ores james T carrick johannesburg transvaal process of recovering fine gold james H alling ailing san francisco cal process of and apparatus for treating ores walter G perkins smelter nev and mark L requa san francisco cal apparatus for treating ores W wal al ter G Peri uns london En england glandy and mark L requa san francisco cal apparatus for separation of silver from fixing solutions chauncey W judd los angeles cal ore sampling apparatus alexan i der J mccone reno rano nev |