Exhaust or silencing apparatus characterised by constructional features: other arrangements or adaptations

Official title: Other arrangements or adaptations of exhaust conduits {(pipes, joints or supports therefor in general F16L; collecting or removing exhaust gases of vehicle engines in workshops B08B15/00, on highways E01C1/005)}

F01N13/08 (Exhaust or silencing apparatus characterised by constructional features: other arrangements or adaptations) appears on 3,103 US grants and 2,855 published applications in this corpus.