F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
2590/00
Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
2590/00
Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines