CPC Subgroup
F16N 17/02 at high temperature (of turbines F01D, F02C; lubrication of machines or engines in general, of internal-combustion engines F01M)
Full Title
Lubrication of machines or apparatus working under extreme conditions (additives to lubricating oil or lubricating grease C10M) > at high temperature (of turbines F01D, F02C; lubrication of machines or engines in general, of internal-combustion engines F01M)