Show PATENTS RECENTLY ISSUED reported specially for this paper by R W bishop patent attorney washington D C mine car E C and F L callahan terre haute ind mining sulphur herman frasch new york N Y assignor to the frasch sulphur process co kittery me ale candlestick G D neill denver colo amalgamator G E colorado springs colo assignor of fifteen twenty fourths to C E bibb C H theobald and H L butler same place process of reducing sulphide ores eduard dedolph marysville marksville Marys ville canada method of roasting sulphurous ores adolf aachen germany converter ralph baggaley pittsburg pa safety bralie for skips john owens Mara isburg transvaal method of preparing compounds of lead A S ramage detroit mich crusher head C W guttzeit high bridge N J assignor to taylor iron steel co same place minners MiM AliM ners drill G F weiss springfield ill assignor to the black diamond coal drill tool co same place pick william and I 1 E E donaldson moingona Moin gona iowa stone crusher E C hodges bloomington ill Fur furnace ilace E H schwartz CM cago ill assignor to the hawley down draft furnace co same place method of melting E H schwartz chicago ill assignor to the hawley down draft furnace co same place means for increasing the air blast of converters converter s ralph baggaley pittsburg pa C M allen alien lo 10 lo 10 mont and E W lindquist chicago ill assignors assigners assign ors to pittsburg montana copper co pittsburg pennsylvania magnetic separator alfred schwarz new york N Y tailings discharge valve alfred schwarz new york N Y assignor to schwarz engineering co same place process of leaching ores alfred schwarz sch new york N Y assignor to schwarz engineering co same place magnetic separator alfred schwarz new york N Y igniting Z tape A T herr denver colo assignor to the rapid fire fuse igniter co same place |