71591000
Jan 17, 1950
Feb 20, 1951
AN ADDITIVE TO LUBRICATING OIL AND GREASE, TO FORTIFY THE SAME AGAINST DETERIORATION IN USE, AND AGAINST THE FORMATION OF GUMS AND SLUDGE, AND TO ENHANCE THEIR LUBRICATING QUALITIES, AND TO PETROLEUM FUELS TO IMPROVE ENGINE LUBRICATION AND EFFICIENCY AND FOR THE LUBRICATING OIL SO FORTIFIED WITH SUCH ADDITIVE
Musical Instruments