CPC Subgroup
F16N 17/06 in vacuum or under reduced pressure (lubrication of evacuating pumps F04; of rotary anodes of X-ray tubes H01J35/10)
Full Title
Lubrication of machines or apparatus working under extreme conditions (additives to lubricating oil or lubricating grease C10M) > in vacuum or under reduced pressure (lubrication of evacuating pumps F04; of rotary anodes of X-ray tubes H01J35/10)