IPC Subgroup
F02M 31/1 by hot liquids, e.g. lubricants
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture > for heating > combustion-air or fuel-air mixture > by hot liquids, e.g. lubricants
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- Subclass:
- SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF