DIFF Subgroup
F25J 3/08 Separating gaseous impurities from gases or gaseous mixtures (cold traps B01D8/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Separating gaseous impurities from gases or gaseous mixtures
CPC: Separating gaseous impurities from gases or gaseous mixtures (cold traps B01D8/00)
Full Title
Full titles differ between systems:
IPC:
Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification > Separating gaseous impurities from gases or gaseous mixtures
CPC:
Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification > Separating gaseous impurities from gases or gaseous mixtures (cold traps B01D8/00)
No child classifications to compare. This is a leaf node in both IPC and CPC.