FR679445A - Improvements to clocks - Google Patents

Improvements to clocks

Info

Publication number
FR679445A
FR679445A FR679445DA FR679445A FR 679445 A FR679445 A FR 679445A FR 679445D A FR679445D A FR 679445DA FR 679445 A FR679445 A FR 679445A
Authority
FR
France
Prior art keywords
clocks
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
Edward George Breen
Guy Marshall Fife
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 FR679445A publication Critical patent/FR679445A/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
    • G04B19/34—Position of the hands projected optically
    • 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
    • G04B19/06—Dials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR679445D 1929-07-27 1929-07-27 Improvements to clocks Expired FR679445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR679445T 1929-07-27

Publications (1)

Publication Number Publication Date
FR679445A true FR679445A (en) 1930-04-12

Family

ID=9021682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR679445D Expired FR679445A (en) 1929-07-27 1929-07-27 Improvements to clocks

Country Status (1)

Country Link
FR (1) FR679445A (en)

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