Joel Marie Charles

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La Valette, FR

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Patents Grantslast 30 patents

Information Patent Grant
Isobaric device with rotating electrical contacts
- Patent number 3,972,577
- Issue date Aug 3, 1976
- Etat Francais represented by Delegation Ministerielle pour l'Armement
- Joel Marie Charles
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER