FR542250A - Automatic perpetual calendar system - Google Patents

Automatic perpetual calendar system

Info

Publication number
FR542250A
FR542250A FR542250DA FR542250A FR 542250 A FR542250 A FR 542250A FR 542250D A FR542250D A FR 542250DA FR 542250 A FR542250 A FR 542250A
Authority
FR
France
Prior art keywords
perpetual calendar
calendar system
automatic
automatic perpetual
perpetual
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Maurice Massonnier
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 filed Critical
Application granted granted Critical
Publication of FR542250A publication Critical patent/FR542250A/en
Expired legal-status Critical Current

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
    • G04B19/24306—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 combination of different shapes, e.g. bands and discs, discs and drums
    • G04B19/2432—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/24333—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR542250D 1921-10-12 1921-10-12 Automatic perpetual calendar system Expired FR542250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR542250T 1921-10-12

Publications (1)

Publication Number Publication Date
FR542250A true FR542250A (en) 1922-08-08

Family

ID=8930744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR542250D Expired FR542250A (en) 1921-10-12 1921-10-12 Automatic perpetual calendar system

Country Status (1)

Country Link
FR (1) FR542250A (en)

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