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Priority claimed from FR37578Aexternal-prioritypatent/FR1547366A/fr
Application filed by Inst Francais Du PetrolefiledCriticalInst Francais Du Petrole
Priority to NO382970ApriorityCriticalpatent/NO131261C/no
Publication of NO131261BpublicationCriticalpatent/NO131261B/no
Publication of NO131261CpublicationCriticalpatent/NO131261C/no