CPC Subgroup
F04B 37/08 by condensing or freezing, e.g. cryogenic pumps
Full Title
Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 > for evacuating by thermal means > by condensing or freezing, e.g. cryogenic pumps
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open