DIFF Subgroup
G01R 35/02 of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
Introduced: September 1968
Full Title
Testing or calibrating of apparatus covered by the other groups of this subclass > of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
No child classifications to compare. This is a leaf node in both IPC and CPC.