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Priority claimed from FI972613Aexternal-prioritypatent/FI972613A0/en
Application filed by Parma Betonila OyfiledCriticalParma Betonila Oy
Priority to FI980300UpriorityCriticalpatent/FI3683U1/en
Publication of FIU980300U0publicationCriticalpatent/FIU980300U0/en
Application grantedgrantedCritical
Publication of FI3683U1publicationCriticalpatent/FI3683U1/en