DIFF Subgroup
B25D 17/12 of exhaust silencers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Details of, or accessories for, portable power-driven percussive tools > Arrangements of noise damping means > of exhaust silencers
CPC:
Details of, or accessories for, portable power-driven percussive tools > Arrangements of noise-damping means > of exhaust silencers
No child classifications to compare. This is a leaf node in both IPC and CPC.