FR915560A - Method and apparatus for determining the precision of movements, in particular in horology - Google Patents

Method and apparatus for determining the precision of movements, in particular in horology

Info

Publication number
FR915560A
FR915560A FR915560DA FR915560A FR 915560 A FR915560 A FR 915560A FR 915560D A FR915560D A FR 915560DA FR 915560 A FR915560 A FR 915560A
Authority
FR
France
Prior art keywords
horology
movements
precision
determining
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)
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.)
Allen B du Mont Laboratories Inc
Original Assignee
Allen B du Mont Laboratories Inc
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 Allen B du Mont Laboratories Inc filed Critical Allen B du Mont Laboratories Inc
Application granted granted Critical
Publication of FR915560A publication Critical patent/FR915560A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR915560D 1944-10-06 1945-10-06 Method and apparatus for determining the precision of movements, in particular in horology Expired FR915560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US915560XA 1944-10-06 1944-10-06

Publications (1)

Publication Number Publication Date
FR915560A true FR915560A (en) 1946-11-12

Family

ID=22228387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915560D Expired FR915560A (en) 1944-10-06 1945-10-06 Method and apparatus for determining the precision of movements, in particular in horology

Country Status (1)

Country Link
FR (1) FR915560A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108153140A (en) * 2017-12-29 2018-06-12 珠海罗西尼表业有限公司 Mechanical watch precision tester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108153140A (en) * 2017-12-29 2018-06-12 珠海罗西尼表业有限公司 Mechanical watch precision tester
CN108153140B (en) * 2017-12-29 2024-01-09 珠海罗西尼表业有限公司 Precision tester for mechanical watch

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