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Marc Fragneau
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Asnieres, FR
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last 30 patents
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Patent Grant
Suspension springs for a vibrating piezoelectric plate
Patent number
4,859,898
Issue date
Aug 22, 1989
Compagnie D'Electronique Et De Piezo-Electricitie C.E.P.E
Jean-Pierre Aubry
H03 - BASIC ELECTRONIC CIRCUITRY