DIFF Subgroup
G01V 9/02 Determining existence or flow of underground water
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Prospecting or detecting by methods not provided for in groups > Determining existence or flow of underground water
CPC:
Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 > Determining existence or flow of underground water
No child classifications to compare. This is a leaf node in both IPC and CPC.