DIFF Subgroup
F28F 7/02 Blocks traversed by passages for heat-exchange media
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Elements not covered by group , , or > Blocks traversed by passages for heat-exchange media
CPC:
Elements not covered by group F28F1/00, F28F3/00 or F28F5/00 > Blocks traversed by passages for heat-exchange media
No child classifications to compare. This is a leaf node in both IPC and CPC.