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Six Fours les Plages, FR
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Patents Grants
last 30 patents
Information
Patent Grant
Process and transducers submerged in a fluid for emitting low frequ...
Patent number
5,636,183
Issue date
Jun 3, 1997
Etat Francais as represented by the Delegue General pour l'armement
Didier J. M. Boucher
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Process and transducer for emitting wide band and low frequency aco...
Patent number
5,579,287
Issue date
Nov 26, 1996
L'ETAT FRANCAIS, represente par le Delegue General pour l'Armement
Didier D. M. Boucher
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Directional electro-acoustic transducers comprising a sealed sell c...
Patent number
5,546,361
Issue date
Aug 13, 1996
Etat Francais as represented by the Delegue General pour l'armement
Didier Boucher
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Electro-acoustic transducers comprising a flexible and sealed trans...
Patent number
5,515,343
Issue date
May 7, 1996
Etat Francais as represented by the Delegue General pour l'armement
Didier Boucher
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Process and electro-acoustic transducers for transmitting low-frequ...
Patent number
5,363,345
Issue date
Nov 8, 1994
L'Etat Francais represente par . . . le Delegue Ministerial pour l'Armement
Didier Boucher
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Process to increase the power of the low frequency electro acoustic...
Patent number
5,070,486
Issue date
Dec 3, 1991
Et Francais
Didier Boucher
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Tonpilz type piezoelectric transducer capable of operating alternat...
Patent number
4,811,307
Issue date
Mar 7, 1989
L'Etat Francais represente par le Delegue General pour l'Armement
Charles Pohlenz
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Electrio-acoustic transducers
Patent number
4,752,918
Issue date
Jun 21, 1988
Etat Francais
Didier Boucher
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL