Show PATENTS RECENTLY reported specially for the mining review by K R W bishop patent attorney washington D C roasting furnace LT L T wright res kes wick cal stamp mill can J C H vaught phil linsburg Ups lips burg mont and amalgamators G guscott GC C scott columbus ohio ore treating apparatus EL E L sharp shari neck chicago ill ore separator J M mcclave Mc Claye P H R kirby and E R cumbe denver colo ore screening apparatus walter me dermott london england process of treating copper nickel ores D P shuler sudbury canada rock harry luckenbach seattle wash assignor of one half to J A elwell same place automatic dumping car C H snow san francisco cal distributor for gold separators separator ss RR HE Post lethwaite san francisco cal assignor to risdon iron and locomotive works same place assaying apparatus W T armstrong san jose cal ore crusher A C calkins los angeles cal assignor to F W braun same place ore roasting furnace T D merton victoria process of purifying zinc bearing ores 0 R P steinau cleveland ohio cyanide tank J J hervey brandsburg randsburg Rand Rands slur burg cal submarine gold saving device L A craig san francisco cal assignor to sut sun marine mining co same place pick E A smith fowler colo assignor to F W nash and E M sprague denver denter colo self cosing mine door friedrich gunther recklinghausen hausen germany process of recovering metals E D kendall new york N Y concentrator C M kimball port huron mich guide tor for stamp stems D C demarest angels camp cal and methods of making alkaline cyanides cranides cy anides J D darling philadelphia pa assign assignor sr to harrison arrison H bros co incorporated same place smelting smelling Sm elting furnace H huewitt HH H hewitt ewitt buffalo N Y concentrator M D rochford kingman ariz method of extracting metals from oxide ores jahn and john landin stockholm sweden clamp for rock drills F R brown unga alaska process of precipitating copper roil from water A J whitehall whitehall mont assignor qs signor of two thirds to joseph mitch and alberta Q dygert butte Butt mont eMont and Down hauls for mines mine s C L LE schenk walkers mills pa assignor to tate tae jones co incorporated pittsburg pa brake for for mines C CLE L schenk walkers mills pa assignor to tate jones s co incorporated pittsburg pa extraction of metals from ores bertram hunt san francisco cal |