DIFF Subgroup
G01R 29/22 Measuring piezoelectric properties
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Arrangements for measuring or indicating electric quantities not covered by groups > Measuring piezoelectric properties
CPC:
Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00 > Measuring piezoelectric properties
No child classifications to compare. This is a leaf node in both IPC and CPC.