Nonmetallic building materials Trademarks Filed in July 11, 1961
TZ

TZ

Filed: July 11, 1961
Shaped Refractory Articles Such as Furnace Lining Bricks
Owned by: HARBISONWALKER INTERNATIONAL, INC.
Serial Number: 72123782

TZB

TZB

Filed: July 11, 1961
Shaped Refractory Articles Such as Furnace Lining Bricks
Owned by: HARBISONWALKER INTERNATIONAL, INC.
Serial Number: 72123783