Nonmetallic building materials Trademarks Filed in January 31, 1951
TUFF-LITE
Filed: January 31, 1951
CASTABLE REFRACTORY MATERIAL
Owned by: PLIBRICO JOINTLESS FIREBRICK COMPANY
Serial Number: 71609450
A-11
Filed: January 31, 1951
CALCINED PLASTER FOR INDUSTRIAL TOOLING
Owned by: UNITED STATES GYPSUM COMPANY
Serial Number: 71609455
B-11
Filed: January 31, 1951
CASTING PLASTER
Owned by: UNITED STATES GYPSUM COMPANY
Serial Number: 71609456
