Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes [CPC: F01N2230/00] or [CPC: F01N2250/00], one of the devices being a flow director or deflector
Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes [CPC: F01N2230/00] or [CPC: F01N2250/00], one of the devices being a flow director or deflector