L'Etat Francais represente par le Delegue Ministeriel

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Quartz resonator with electrodes that do not adhere to the crystal
- Patent number 4,135,108
- Issue date Jan 16, 1979
- L'Etat Francais represente par le Delegue Ministeriel
- Raymond J. Besson
- H03 - BASIC ELECTRONIC CIRCUITRY

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