Machinery Trademarks Filed in March 22, 1939
EMSCO

EMSCO

Filed: March 22, 1939
CROWN BLOCKS, TRAVELING BLOCKS, SWIVELS, ROTARY MACHINES, DRILL STEM BUSHINGS, DRAW WORKS, MULTIPLE PRIME MOVER, ROTARY…
Owned by: YOUNGSTOWN SHEET AND TUBE COMPANY
Serial Number: 71417368