FR645871A - - Google Patents

Info

Publication number
FR645871A
FR645871A FR645871DA FR645871A FR 645871 A FR645871 A FR 645871A FR 645871D A FR645871D A FR 645871DA FR 645871 A FR645871 A FR 645871A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR645871A publication Critical patent/FR645871A/fr
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
    • G04B19/247—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
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/25366—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement manually corrected at the end of months having less than 31 days

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR645871D Expired FR645871A (zh)

Publications (1)

Publication Number Publication Date
FR645871A true FR645871A (zh) 1928-11-03

Family

ID=1542798

Family Applications (1)

Application Number Title Priority Date Filing Date
FR645871D Expired FR645871A (zh)

Country Status (1)

Country Link
FR (1) FR645871A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671307A (en) * 1950-08-15 1954-03-09 Imhof Arthur Calendar indicator mechanism
US2741082A (en) * 1950-12-12 1956-04-10 Elberg Boris Calendar timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671307A (en) * 1950-08-15 1954-03-09 Imhof Arthur Calendar indicator mechanism
US2741082A (en) * 1950-12-12 1956-04-10 Elberg Boris Calendar timepiece

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