72333861
Jul 30, 1969
Mar 30, 1971
METAL AND METAL ALLOYS-NAMELY, GOLD, PLATINUM, PALLADIUM, SILVER, RHENIUM, AND RHODIUM IN THE FORM OF POWDER, INGOTS, FOIL AND ELECTRODES
JewelryEQUIPMENT FOR ELECTROPLATING AND RECLAIMING METALS-NAMELY, RECTIFIERS, ION EXCHANGE COLUMNS, AND ELECTROLYTIC RECOVERY CELLS
Housewares and Glass