DIFF Subgroup
G04C 21/18 by mechanically unlocking an electromechanical vibrator, e.g. actuated by the leakage flux of the electric driving means
Introduced: September 1968
Full Title
Producing acoustic time signals by electrical means > producing the signals at adjustable fixed times > by mechanically unlocking an electromechanical vibrator, e.g. actuated by the leakage flux of the electric driving means
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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