72385546
Mar 5, 1971
Feb 20, 1973
CHEMICAL COMPOSITION USED AS A SURFACE COATING TO PREVENT OR CONTROL WEAR FROM ABRASION OR CORROSION BY WEATHER, SOIL ACIDS, SALT WATER, HEAT OR THE LIKE
Metal GoodsFERROUS METALS CONSTRUCTION MATERIALS COATED WITH A CHEMICAL COMPOSITION USED AS A SURFACE COATING TO PREVENT OR CONTRROL WEAR FROM ABRASION OR CORROSION BY WEATHER, SOIL ACIDS, SALT WATER, HEAT OR THE LIKE
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