Gilbert Marius Henri Martin

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La Seyne-sur-Mer, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for recovering sunken wrecks
- Patent number 4,031,840
- Issue date Jun 28, 1977
- Etat Francais
- Gerald Marc Albert Boisrayon
- F42 - AMMUNITION BLASTING
Information Patent Grant
Swivel air lock for airtight connection between submergibles
- Patent number 3,987,742
- Issue date Oct 26, 1976
- Etat Francais represente par le Deleque Ministeriel pour l'Armement
- Gerald M. Boisrayon
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Underwater escape apparatus
- Patent number 3,969,903
- Issue date Jul 20, 1976
- Etat Francais
- Gerald Marc Albert Boisrayon
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Buoy releasable from a submarine
- Patent number 3,933,109
- Issue date Jan 20, 1976
- Etat Francais
- Gerard M. Boisrayon
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT