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Publication of CH499873A4publicationCriticalpatent/CH499873A4/xx
G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
G—PHYSICS
G04—HOROLOGY
G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B23/00—Arrangements producing acoustic signals at preselected times
G04B23/02—Alarm clocks
G04B23/04—Alarm clocks with coarse and fine setting of the preselected times
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Acoustics & Sound
(AREA)
Measurement Of Predetermined Time Intervals
(AREA)