Gianfranco Frigeni

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38 - Bergamo, IT

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Patents Grantslast 30 patents

Information Patent Grant
Immersion apparatus carrying detachable and self-contained prospect...
- Patent number 4,164,195
- Issue date Aug 14, 1979
- Gianfranco Frigeni
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT