6 CHEMICAL PREPARATIONS FOR ELECTROPLATING, AND FOR BRIGHTENING METALS, TO PRODUCE TARNISH-RESISTANT, AND ANTIQUE, OR OXIDIZED FINISHES
16 YELLOW BRONZE, IMITATION GOLDPLATE DECORATIVE COATING AND ALUMINUM PIGMENTED DECORATIVE AND PROTECTIVE COATING PREPARATIONS
34 FLUXES FOR SOLDERING, BRAZING, WELDING, AND ANNEALING METALS
52 CLEANING COMPOSITIONS FOR PREPARING THE SURFACES OF METALS IN ELECTROPLATING AND METAL FINISHING FIELDS
FIRST USE OCTOBER 1933 ON YELLOW BRONZE IMITATION GOLD-PLATE DECORATIVE COATING; IN COMMERCE OCTOBER 1933. FIRST USE OCTOBER 1933 ON YELLOW BRONZE IMITATION GOLD-PLATE DECORATIVE COATING; IN COMMERCE OCTOBER 1933.