Show 0 I 1 PATENTS RECENTLY ISSUED reported specially tor for this paper by R W bishop patent attorney washington D C method of converting matte C M allen alien lolo 1010 mont assignor to ralph baggaley pittsburg pa leaching tank A B twisp twisk wash assigner of two thirds to R S lewis and treadwell twichell fargo N D method of applying heat for treatment of ores W J jackson san francisco cal device for treating and amalgamating metals G P cape town cape colony rock drill L C hardsoeg hardsocg ottumwa iowa process of treating ores J H haynes and W D engle dingle denver colo as signors sig nors to the dolores refining company same place method of treating molten matte W B D koch pittsburg pa concentrator J U lloyd norwood ohio electrolytic apparatus H S blackmore mount vernon N Y and process of gromov ing sulphur from constituents of petroleum H S blackmore mount vernon N Y assignor to blackford utility oil company of the district of columbia and process of making caustic alkali H S blackmore mount vernon N Y |