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Bruno Erni
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Bienne, CH
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Patents Grants
last 30 patents
Information
Patent Grant
Perpetual calendar watch having two motors
Patent number
4,733,384
Issue date
Mar 22, 1988
Eta Sa Fabriques d'Ebauches
Pierre-Andre Meister
G04 - HOROLOGY
Information
Patent Grant
Universal time piece
Patent number
4,634,287
Issue date
Jan 6, 1987
Tissot S.A.
Cyril Vuilleumier
G04 - HOROLOGY
Information
Patent Grant
Timepiece with calendar
Patent number
4,611,925
Issue date
Sep 16, 1986
Omega SA
Cyril Vuilleumier
G04 - HOROLOGY
Information
Patent Grant
Positioning mechanism for a center wheel
Patent number
4,408,898
Issue date
Oct 11, 1983
Societe Suisse pour l'Industrie Horlogere Management Services S.A.
Cyril Vuilleumier
G04 - HOROLOGY
Information
Patent Grant
Keyboard switch assembly having flexible rung ladder contacts
Patent number
4,065,651
Issue date
Dec 27, 1977
Societe Suisse pour l'Industrie Horlogere Management Services S.A.
Bruno Erni
H01 - BASIC ELECTRIC ELEMENTS