73387964
Sep 23, 1982
Dec 20, 1983
Plastic Forms for Concrete Columns, Plastic Void Forms for Concrete Construction, Plastic Pile Encasements and Well Casings, Underground Plastic Pits and Enclosures for Utility Meters
Nonmetallic Building MaterialsTanks Formed of Plastic, Extraction Ducts of Plastic and Plastic Cores for Winding and Storage of Strand and Web Material
Furniture and Articles not Otherwise Classified