February 18, 1938 Trademark Filings

DOUBLE CIRCLE
TWIST DRILLS, REAMERS, MILLING CUTTERS, AND OTHER METAL CUTTING TOOLS
Expired  ·  February 18, 1938  ·  71403184  · 
double circle
PURE-ORE "D-C 33"
HOT WORK STEEL
Expired  ·  February 18, 1938  ·  71403180  · 
pure-ore "d-c 33"