S.P.N. S. R. L.

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Perugia, IT

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Patents Grantslast 30 patents

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Vertical axis and transversal flow nautical propulsor with continuo...
- Patent number 6,244,919
- Issue date Jun 12, 2001
- S.P.N. S. R. L.
- Piero Valentini
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT