71465970
Dec 22, 1943
May 30, 1944
SILVER BRAZING ALLOYS AND SEMIFABRICATED ARTICLES OF PRECIOUS METALS AND THEIR ALLOYS-NAMELY, PLATES, DISCS, SHEETS, STRIPS, RODS, TUBES, WIRES, CIRCLES, AND PLATER BARS OF SILVER, GOLD, PLATINUM, AND THEIR ALLOYS
Jewelry