CH553440ACH413271ACH413271ACH553440ACH 553440 ACH553440 ACH 553440ACH 413271 ACH413271 ACH 413271ACH 413271 ACH413271 ACH 413271ACH 553440 ACH553440 ACH 553440A
Authority
CH
Switzerland
Application number
CH413271A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to CH413271DpriorityCriticalpatent/CH413271A4/xx
Priority to CH413271Aprioritypatent/CH553440A/xx
Publication of CH553440ApublicationCriticalpatent/CH553440A/xx
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
G04B19/00—Indicating the time by visual means
G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
G04B19/253—Driving or releasing mechanisms
G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
G04B19/25373—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by an energy source which is released at determined moments by the clockwork movement