71480476
Mar 3, 1945
Sep 11, 1945
LIQUID PREPARATION TO BE INCORPORATED WITH OR APPLIED TO CEMENT AND CONCRETE FOR THE PURPOSE OF CONTROLLING AND ACCELERATING ITS SETTING, INCREASING ITS HARDNESS, TENSILE STRENGTH AND DURABILITY, RENDERING THE RESULTING PRODUCT IMPERVIOUS TO WATER AND PREVENTING ITS FREEZING DURING WINTER CONSTRUCTION
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