Nonmetallic building materials Trademarks Filed in August 29, 1931
SNOWCRETE
Filed: August 29, 1931
PORTLAND CEMENT
Owned by: ASSOCIATED PORTLAND CEMENT MANUFACTURERS, LIMITED, THE
Serial Number: 71318546
PLYWALL
Filed: August 29, 1931
SHEETS OF WOOD VENEER
Owned by: ROBINSON MANUFACTURING COMPANY
Serial Number: 71318567
