FR517740A - Horometric instruments - Google Patents

Horometric instruments

Info

Publication number
FR517740A
FR517740A FR517740A FR517740DA FR517740A FR 517740 A FR517740 A FR 517740A FR 517740 A FR517740 A FR 517740A FR 517740D A FR517740D A FR 517740DA FR 517740 A FR517740 A FR 517740A
Authority
FR
France
Prior art keywords
horometric
instruments
horometric instruments
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
FR517740A
Other languages
French (fr)
Inventor
Edmund Reynold Deering
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDMUND REYNOLD DEERING
Original Assignee
EDMUND REYNOLD DEERING
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 EDMUND REYNOLD DEERING filed Critical EDMUND REYNOLD DEERING
Application granted granted Critical
Publication of FR517740A publication Critical patent/FR517740A/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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
FR517740A 1920-06-24 1920-06-24 Horometric instruments Expired FR517740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR517740T 1920-06-24

Publications (1)

Publication Number Publication Date
FR517740A true FR517740A (en) 1921-05-10

Family

ID=8915944

Family Applications (1)

Application Number Title Priority Date Filing Date
FR517740A Expired FR517740A (en) 1920-06-24 1920-06-24 Horometric instruments

Country Status (1)

Country Link
FR (1) FR517740A (en)

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