DIFF Subgroup
E03B 3/30 from snow or ice
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Methods or installations for obtaining or collecting drinking water or tap water > from snow or ice
CPC:
Methods or installations for obtaining or collecting drinking water or tap water (treatment of water C02F) > from snow or ice
No child classifications to compare. This is a leaf node in both IPC and CPC.