GENGUN
Filed: November 5, 1984
REFRACTORY GUNNING MIX
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 73507203
SLT
Filed: November 13, 1984
Spring Lock Tile for Refractory Skid Rail Insulation
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 73508180
AMTEC
Filed: May 20, 1986
REFRACTORY SHAPES
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 73599853
GREFCO
Filed: September 24, 1987
INSULATING MATERIALS USED IN THE REFRACTORY INDUSTRY, NAMELY, MINERAL WOOL AND CEMENT
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 73686078
HAWK
Filed: March 6, 1989
SHAPED AND UNSHAPED REFRACTORIES FOR LINING FURNACES
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 73784941
AMCAST
Filed: March 23, 1989
REFRACTORY SHAPES
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 73788549
