| Show 0 PATENTS RECENTLY ISSUED reported for the mihi mining ng review by davis davis patent attorneys washington D C device for preventing waste of minerals michael J smith and martin 0 kongsli tacoma wash process of extracting precious metals from ores isidor kissee philadelphia pa apparatus for concentrating george F P rendall now new york N Y apparatus for pulverizing and amalgamating ores royer luckenbach colwyn pa collecting means for gold dredges thomas J barbour Barbo urSan S an francisco cal frA 1 1 |
