72016385
Sep 25, 1956
Dec 24, 1957
AGENT OR ADDITIVE FOR CONCRETE TO HARDEN SAME IN GRANULATED, LIQUID OR POWDER FORM; PROTECTION AND HARDENING AGENT AS ADDITIVE TO HARD FLOORS, TO FLOATED WORK, AS WELL AS TO IMPREGNATION AND COATING MATERIALS, CONCRETEAND LIME-MIXTURES OF ALL KINDS
Metal Goods