HR

Hans D. H. Roggeveen

IN Ihc Holland N.V.: 1 patents #14 of 34Top 45%
📍 Papendrecht, NL: #24 of 64 inventorsTop 40%
Overall (All Time): #4,023,362 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4548147 Hopper barge with bottom flaps and a suction channel — 1985-10-22