DIFF Subgroup
F25C 1/16 by partially evaporating water in a vacuum
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Producing ice > by partially evaporating water in a vacuum
CPC:
Producing ice (F25C3/00 takes precedence) > by partially evaporating water in a vacuum
No child classifications to compare. This is a leaf node in both IPC and CPC.