508 / | HD | SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS |
110 | DF | LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53} |
577 | DF | .~ Organic oxygen compound {3} |
578 | .~.~ Carbocyclic ring bonded directly to the carbon of a carbonyl group (e.g., phenyl ketones, anthraquinones, etc.) |