Cornelis Jan Ravesteyn

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Jutphaas, NL

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for maintaining tools at a level
- Patent number 4,584,784
- Issue date Apr 29, 1986
- Tjako A. Wolters
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Swingable water and slush tube assembly for suction dredgers
- Patent number 4,083,133
- Issue date Apr 11, 1978
- Ballast Nedam Groep N.V.
- Cornelis Jan Ravesteyn
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING