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CH289A - New anti-magnetic hairspring system for watches and chronometers known as Wolfor hairsprings - Google Patents

New anti-magnetic hairspring system for watches and chronometers known as Wolfor hairsprings

Info

Publication number
CH289A
CH289A CH289A CH289DA CH289A CH 289 A CH289 A CH 289A CH 289 A CH289 A CH 289A CH 289D A CH289D A CH 289DA CH 289 A CH289 A CH 289A
Authority
CH
Switzerland
Prior art keywords
wolfor
hairsprings
chronometers
watches
magnetic
Prior art date
Application number
CH289A
Other languages
French (fr)
Inventor
D Or Usine Genev Degrossissage
Original Assignee
Genevoise Degrossissage D Or
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 Genevoise Degrossissage D Or filed Critical Genevoise Degrossissage D Or
Publication of CH289A publication Critical patent/CH289A/en

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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/007—Antimagnetic alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH289A 1889-01-10 1889-01-10 New anti-magnetic hairspring system for watches and chronometers known as Wolfor hairsprings CH289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH289T 1889-01-10

Publications (1)

Publication Number Publication Date
CH289A true CH289A (en) 1889-03-05

Family

ID=4177729

Family Applications (1)

Application Number Title Priority Date Filing Date
CH289A CH289A (en) 1889-01-10 1889-01-10 New anti-magnetic hairspring system for watches and chronometers known as Wolfor hairsprings

Country Status (1)

Country Link
CH (1) CH289A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102280A1 (en) * 1970-08-14 1972-04-07 Tanaka Engineering Kk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102280A1 (en) * 1970-08-14 1972-04-07 Tanaka Engineering Kk

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