DIFF Subgroup
G01M 3/38 by using light (G01M3/02 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: by using light
CPC: by using light (G01M3/02 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Investigating fluid tightness of structures > by using light
CPC:
Investigating fluid-tightness of structures > by using light (G01M3/02 takes precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.