73057255
Jul 9, 1975
Dec 28, 1976
REINFORCED STRUCTURAL FOAM MATERIALS USED IN A VARIETY OF STRUCTURAL APPLICATIONS SUCH AS BARNS, FENCES, CEMENT FORMS, TANNERY OVENS, HIDE CARRIERS, TRUCK/TRAILER BODIES, PARTITIONS AND WALLS, SHIPPING CONTAINER, MODULAR/MOBILE HOMES, BOATS, SWIMMING POOLS AND BULKHEADS
Nonmetallic Building Materials