Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Per GuttulsrudfiledCriticalPer Guttulsrud
Priority to NO743612ApriorityCriticalpatent/NO133615C/no
Priority to US542419Aprioritypatent/US3926450A/en
Priority to CA225,436Aprioritypatent/CA1026783A/en
Priority to DE2518173Aprioritypatent/DE2518173C3/de
Publication of NO133615BpublicationCriticalpatent/NO133615B/no
Publication of NO133615CpublicationCriticalpatent/NO133615C/no