DIFF Subgroup
G04D 7/08 for balance wheels
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Measuring, counting, calibrating, testing, or regulating apparatus > for balance wheels
CPC:
Measuring, counting, calibrating, testing or regulating apparatus > for balance wheels
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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