DIFF Subgroup
G04B 17/02 Oscillators acting by gravity, e.g. pendulum swinging in a plane
Introduced: September 1968
Full Title
Mechanisms for stabilising frequency > Oscillators acting by gravity, e.g. pendulum swinging in a plane
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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