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Application filed by Toomas Tank, Ulf KarlssonfiledCriticalToomas Tank
Priority to SE8900773ApriorityCriticalpatent/SE8900773D0/sv
Publication of SE8900773D0publicationCriticalpatent/SE8900773D0/sv
SE8900773A1989-03-061989-03-06Anordning foer draenering samt kvarhaallande av materia paa lutande plan samt uppsamling av foeroreningar i vatten
SE8900773D0
(sv)