D

MUFFLERS FOR INTERNAL COMBUSTION ENGINES; SILENCERS FOR GAS TURBINE ENGINES; SPARK ARRESTORS FOR INTERNAL COMBUSTION ENGINES; CENTRIFUGAL PRE-CLEANERS AND AIR CLEANERS FOR INTERNAL COMBUSTION ENGINES AND GAS TURBINE ENGINES; DUST UNLOADER VALVES FOR CENTRIFUGAL AIR CLEANERS; CENTRIFUGAL TYPE COOLANT CLARIFYING UNITS FOR GRINDING MACHINES; AND CENTRIFUGAL SEPARATORS FOR REMOVING PARTICLES FROM LIQUIDS IN CONTINUOUS FLOW

AIR FLOW RESTRICTION INDICATOR GAUGES

POROUS MEDIA AIR FILTERS AND PRESCREENERS FOR GAS TURBINE ENGINES AND INTERNAL COMBUSTION ENGINES; OIL BATH AIR CLEANERS FOR INTERNAL COMBUSTION ENGINES; AIR-OIL SEPARATORS HAVING A COALESCING ELEMENT FOLLOWED BY AN INERTIAL SEPARATOR; AIR INTAKE CAPS AND HOODS FOR AIR FILTERS FOR INTERNAL COMBUSTION ENGINES; VENTILATION PANEL FILTERS FOR VEHICLE OPERATOR CABS, AIR CONDITIONERS, ELECTRONIC EQUIPMENT AND INDUSTRIAL VENTILATION; AIRCRAFT GYRO FILTERS; AND AUTOMATIC SELF-CLEANING DUST FILTERS FOR INDUSTRIAL APPLICATION