CH8537A - Automatic perpetual calendar - Google Patents

Automatic perpetual calendar

Info

Publication number
CH8537A
CH8537A CH8537A CH8537DA CH8537A CH 8537 A CH8537 A CH 8537A CH 8537 A CH8537 A CH 8537A CH 8537D A CH8537D A CH 8537DA CH 8537 A CH8537 A CH 8537A
Authority
CH
Switzerland
Prior art keywords
perpetual calendar
automatic
automatic perpetual
calendar
perpetual
Prior art date
Application number
CH8537A
Other languages
French (fr)
Inventor
Ferdinand Dupont
Original Assignee
Ferdinand Dupont
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 filed by Ferdinand Dupont filed Critical Ferdinand Dupont
Publication of CH8537A publication Critical patent/CH8537A/en

Links

Classifications

    • 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
    • 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
    • G04B19/257—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 drum-shaped or three-dimensional shaped
    • G04B19/2573—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/2578—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released by their own energy source which is released at regular time intervals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH8537A 1894-05-17 1894-05-17 Automatic perpetual calendar CH8537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH8537T 1894-05-17

Publications (1)

Publication Number Publication Date
CH8537A true CH8537A (en) 1894-11-15

Family

ID=4196723

Family Applications (1)

Application Number Title Priority Date Filing Date
CH8537A CH8537A (en) 1894-05-17 1894-05-17 Automatic perpetual calendar

Country Status (1)

Country Link
CH (1) CH8537A (en)

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