73173960
Jun 12, 1978
Mar 31, 1981
Sand, Rock and Pebbles for General Use; Cements for Construction Purposes; Spackling Paste, Plaster, Stucco, Construction and Ceramic Tile Grout; Adhesives Particularly Adapted for Use in Bonding Ceramic Tile and Cement Type Materials to Walls, Floors and Sealed Masonry Surfaces
Nonmetallic Building Materials