Electrical and scientific apparatus Trademarks Filed in July 3, 1957
POROTEC
Filed: July 3, 1957
ELECTRICAL APPARATUS FOR USE IN THE DETECTION OF GAS POROSITY IN MOLTEN METAL
Owned by: FOSECO INTERNATIONAL LIMITED
Serial Number: 72033143
BOUYOUCOS
Filed: July 3, 1957
SOIL MOISTURE BLOCK EMPLOYED IN APPARATUS FOR MEASURING MOISTURE
Owned by: BECKMAN INSTRUMENTS, INC.
Serial Number: 72033153
