72296255
Apr 23, 1968
Apr 6, 1971
CORROSION INHIBITING AND DECORATIVE SURFACE COATINGS BUT EXCLUSIVE OF USE BY THE GRAPHIC ARTS INDUSTRY, THE OFFICE MACHINE REPRODUCTION FIELD, THE ENGINEERING REPRODUCTION FIELD AND THE FIELD OF PHOTOGRAPHIC AND TRANSFER REPRODUCTION, AND RUST PREVENTING SURFACE COATINGS
Paper Goods and Printed Matter