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 Elkem Spigerverket AsfiledCriticalElkem Spigerverket As
Priority to NO761461ApriorityCriticalpatent/NO144332C/no
Priority to SE7704667Aprioritypatent/SE418717B/xx
Priority to FI771303Aprioritypatent/FI771303A/fi
Priority to DK181777AAprioritypatent/DK140167B/da
Priority to US05/846,395prioritypatent/US4168093A/en
Publication of NO761461LpublicationCriticalpatent/NO761461L/no
Publication of NO144332BpublicationCriticalpatent/NO144332B/no
Publication of NO144332CpublicationCriticalpatent/NO144332C/no