72192279
Apr 29, 1964
Apr 20, 1965
[PRINTING INKS] INKS FOR ENGRAVING AND LEATHER, [DUPLICATING INKS,] WRITING AND RULING INKS, BRUSH INKS, STAMP PAD INKS, DEVELOPING INKS, VARNISHES FOR THINNING PRINTING INKS TO MAKE THEM EASIER IN WORKING, CARBON PAPER RIBBON, AND CARBON PAPER
Environmental Control Apparatus