71629615
May 13, 1952
May 26, 1953
DRAWING OIL WHICH IS APPLIED TO METALS BEING FORMED OR SHAPED TO PREVENT SCORING OR SEIZURE OF THE DIE AND METAL BEING WORKED OR FORMED, CUTTING OIL WHICH IS APPLIED OR FLOWN ONTO METAL THAT IS BEING MACHINED, TAPPED, THREADED, OR GROUND TO ACT AS A COOLANT AND LUBRICANT, LUBRICATING OIL AND LUBRICATING GREASE
Musical Instruments