71681452
Feb 10, 1955
Oct 25, 1955
MASTIC FOR USE AS A SURFACING MATERIAL OR AS A PATCHING MATERIAL FOR FLOORS, STAIR TREADS, DECKS, DRIVEWAYS; GROUT, AND BINDER THEREFOR; FLOOR UNDERLAYMENT FOR APPLICATION BY MEANS OF A TROWEL; AND A MEMBRANE FOR WATERPROOFING FLOORS, WALLS, AND ROOFS
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