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Application filed by Hamjern AsfiledCriticalHamjern As
Priority to NO792239ApriorityCriticalpatent/NO143643C/en
Publication of NO792239LpublicationCriticalpatent/NO792239L/en
Publication of NO143643BpublicationCriticalpatent/NO143643B/en
Publication of NO143643CpublicationCriticalpatent/NO143643C/en
PROCEDURE FOR THE ESTABLISHMENT OF A PIPE-SHARED ADDITIONAL ELEMENT FOR A PIPE-SHAPED CONSTRUCTION, AND A PROCEDURE FOR THE PERFORMANCE OF THE PROCEDURE.