OIL WELL SUPPLY COMPANY Trademarks
DI-HARD
Filed: December 20, 1935
SLUSH PUMP LINERS
Owned by: OIL WELL SUPPLY COMPANY
Serial Number: 71372887
WITTE
Filed: November 9, 1950
ELECTRIC GENERATORS POWERED BY INTERNAL COMBUSTIONS
Owned by: OIL WELL SUPPLY COMPANY
Serial Number: 71606166
