Show PATENTS RECENTLY ISSUED prepared for the mining review by davis davis patent attorneys washington separator G W B saxton and W V B H fairchild fail child yreka areka cal process for the precipitation of precious metals from cyanide solutions J NT neil toronto ontario canada amalgamator J G scott mor gan town ind method and apparatus for the prec precipitation of gold old and silver from cyanide solutions D bosqui gold road arizona process for roasting ores 0 gabrielle paris france centrifugal ore and slime concentrator cen C A C christensen hris portland oregon leaching solution for extracting metals from ores J B lealau garay new york N Y |