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Priority claimed from US647871Aexternal-prioritypatent/US3091988A/en
Priority claimed from NL245740Aexternal-prioritypatent/NL101973C/xx
Priority claimed from ES0253809Aexternal-prioritypatent/ES253809A1/es
Application filed by Freformed Line Products CompanfiledCriticalFreformed Line Products Compan
Publication of BE585493ApublicationCriticalpatent/BE585493A/fr