DIFF Subgroup
G01V 7/02 Details
Introduced: September 1968
Full Title
Measuring gravitational fields or waves; Gravimetric prospecting or detecting > Details
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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- G01V 7/04 Electric, photoelectric, or magnetic indicating or recording means IPC+CPC Available in IPC and CPC