Nonmetallic building materials Trademarks Filed in September 9, 1954
KS-4
Filed: September 9, 1954
CASTABLE REFRACTORY FIRE CLAY MATERIAL
Owned by: HARBISONWALKER INTERNATIONAL, INC.
Serial Number: 71672952
SK-7
Filed: September 9, 1954
CASTABLE REFRACTORY MATERIAL
Owned by: A. P. GREEN FIRE BRICK COMPANY and A. P. GREEN FIRE BRICK COMPANY
Serial Number: 71672953
