Constructional details

Full Title

Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (if restricted to producing acoustic time signals by electrical means G04C21/00) > Constructional details

5 direct subcodes

Child Classifications

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G04C 23/04 Housings, supports, shielding, or similar stationary parts
G04C 23/06 Driving or regulating means
G04C 23/08 Programming means
G04C 23/10 for actuating any element which operates, or initiates the operation of, the device concerned
G04C 23/12 Electric circuitry