73073086
Dec 29, 1975
Nov 22, 1977
LIQUID TWO-COMPONENT CASTABLE URETHANE ELASTOMER SEALANTS, CURED, REINFORCED AND NON-REINFORCED SHEETS OF MOLDED URETHANE ELASTOMERS AND QUICKFROZEN LIQUID CASTABLE URETHANE ELASTOMER SEALANTS
Nonmetallic Building Materials