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Priority claimed from NL8102823Aexternal-prioritypatent/NL8102823A/nl
Priority claimed from NL8102822Aexternal-prioritypatent/NL8102822A/nl
Application filed by Wavin BvfiledCriticalWavin Bv
Priority claimed from EP82200662Aexternal-prioritypatent/EP0067472B1/de
Application grantedgrantedCritical
Publication of ATE12609T1publicationCriticalpatent/ATE12609T1/de