Antti Haantera

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Helsinki, FI

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for supporting lighters in lighter-transport s...
- Patent number 4,494,476
- Issue date Jan 22, 1985
- Valmet Oy
- Antti I. Haantera
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Method and apparatus for preventing foreign objects from entering i...
- Patent number 4,405,259
- Issue date Sep 20, 1983
- Valmet Oy
- Veikko Koskivirta
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING