Nonmetallic building materials Trademarks Filed in June 12, 1961
OPERABLE WALL

OPERABLE WALL

Filed: June 12, 1961
SLIDING SECTIONAL ROOM PARTITIONS
Owned by: E. F. HAUSERMAN COMPANY, THE
Serial Number: 72121824

LO-SIL

LO-SIL

Filed: June 12, 1961
Refractory Bricks [ and Castable Refractory Products ]
Owned by: Kaiser Aluminum & Chemical Corporation
Serial Number: 72121830

TROLUMEN

TROLUMEN

Filed: June 12, 1961
Bituminous Compound for Impregnating Fiber Sewer and Drain Pipe
Owned by: STANDARD OIL COMPANY, THE
Serial Number: 72121874