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Priority claimed from NL8102869Aexternal-prioritypatent/NL8102869A/en
Priority claimed from NL8103254Aexternal-prioritypatent/NL8103254A/en
Application filed by Wavin BvfiledCriticalWavin Bv
Priority claimed from EP82200663Aexternal-prioritypatent/EP0067473B1/en
Application grantedgrantedCritical
Publication of ATE45313T1publicationCriticalpatent/ATE45313T1/en