Description
Class F01M : LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING
Subclass 1/26: Pressure lubrication Indicating or safety devices (concerning lubricant level F01M 11/06, F01M 11/12) concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure acting on engine ignition system