G04B19/2573 - CPC Classification

Indicating the time by visual means; Clocks or watches with date indicators ; Clockwork calendars characterised by the shape of the date indicator drum-shaped or three-dimensional shaped Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement

• G04B19/2575 » {driven or released stepwise by the clockwork movement} 0
• G04B19/2576 » {driven or released stepwise by an energy source which is released at determined moments by the clockwork movement} 1
• G04B19/2578 » {driven or released by their own energy source which is released at regular time intervals} 0

Recent Application in this class: