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Priority to NL6511063ApriorityCriticalpatent/NL6511063A/xx
Publication of NL6511063ApublicationCriticalpatent/NL6511063A/xx
E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours