Andrzej Niepiekto

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Gdansk-Wrzeszcz, PL

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Patents Grantslast 30 patents

Information Patent Grant
Braking rudder device
- Patent number 4,278,040
- Issue date Jul 14, 1981
- Politechnika Gdanska
- Jerzy Doerffer
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT