Nonmetallic building materials Trademarks Filed in March 6, 1990
PERMA-STAR
Filed: March 6, 1990
refractory composition for casting, gunning or ramming
Owned by: NATIONAL REFRACTORIES & MINERALS CORPORATION
Serial Number: 74035320
HARMONY
Filed: March 6, 1990
paving stones, turf stones and paving materials
Owned by: Hessit Works Inc.
Serial Number: 74035393
