72157454
Nov 19, 1962
Jan 28, 1964
BERYLLIUM AND METAL ALLOYS-NAMELY, BERYLLIUM AND BERYLLIUM-COPPER ALLOY POWDERS, INGOTS, BILLETS, CASTINGS, FORGINGS, AND MOLDED, CAST, FORGED, PRESSED, EXTRUDED, ROLLED OR WROUGHT METAL ARTICLES AND SHAPES OF UNITARY OR COMPOSITE CONSTRUCTION IN THE UNFINISHED AND SEMI-FINISHED CONDITION
Jewelry