Exhaust or silencing apparatus characterised by constructional features: specially adapted for marine

Official title: {specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water (for submerged exhausting F01N13/12; treating exhaust by using liquids F01N3/04)}

F01N13/004 (Exhaust or silencing apparatus characterised by constructional features: specially adapted for marine) appears on 471 US grants and 252 published applications in this corpus.