73181809
Aug 11, 1978
Apr 7, 1981
Fibre reinforced cement based products-namely, corrugated sheets, plain sheets, shales, window boxes, partitions, sills, wall coverings, and pipes and fittings therefor; fittings for fibre reinforced cement based wall, ceiling, and roofing materials-namely, ridge tiles, and putty
Nonmetallic Building Materials