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Method For Manufacturing A Hairspring With Predetermined Stiffness By Adding Material

Patent No. EP3181939 (titled "Method For Manufacturing A Hairspring With Predetermined Stiffness By Adding Material") was filed by Csem Centre Suisse Delectronique ET DE Microtechnique Recherche ET Dveloppement on Dec 18, 2015. The application was issued on Feb 20, 2019.

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RICHEMONTNov 20, 2019GRUNECKER PATENT

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EP3181939

CSEM CENTRE SUISSE DELECTRONIQUE ET DE MICROTECHNIQUE RECHERCHE ET DVELOPPEMENT
Application Number
EP15201337A
Filing Date
Dec 18, 2015
Status
Granted And Under Opposition
Jan 18, 2019
Publication Date
Feb 20, 2019
External Links
Slate, Register , Google Patents