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Klaas Oterdoom
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Bentveld, NL
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last 30 patents
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Patent Grant
Method of constructing an artificial island and island constructed...
Patent number
4,397,587
Issue date
Aug 9, 1983
Ballast-Nedam Groep N.V.
Jan Op den Velde
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Patent Grant
Suction head for dredgers
Patent number
4,083,134
Issue date
Apr 11, 1978
Anglo Dutch Dredging Co. Ltd.
Klaas Oterdoom
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING