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Priority to JP49114901ApriorityCriticalpatent/JPS5142119A/ja
Publication of JPS5142119ApublicationCriticalpatent/JPS5142119A/ja
Publication of JPS5618823B2publicationCriticalpatent/JPS5618823B2/ja
Kunststofbuis bestaande uit een buitenhuis met ribbels en gladde binnenwand, alsmede werkwijze voor het herstellen resp. verbeteren van een rioleringsbuis.