DIFF Subgroup
F02M 27/02 by catalysts
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sonic waves, or the like > by catalysts
CPC:
Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like > by catalysts
No child classifications to compare. This is a leaf node in both IPC and CPC.