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Priority to JP16300480UpriorityCriticalpatent/JPS6134957Y2/ja
Publication of JPS5785392UpublicationCriticalpatent/JPS5785392U/ja
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Publication of JPS6134957Y2publicationCriticalpatent/JPS6134957Y2/ja
Foerfarande vid fartyg av s k floater-typ eller andra liknandefartyg foer att foerhindra isflak eller andra liknande fr aemande kroppar att komma in i dockningsbassaengen