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 Laatunasta OyfiledCriticalLaatunasta Oy
Priority to FI596/74ApriorityCriticalpatent/FI50490B/fi
Priority to DE19752508234prioritypatent/DE2508234A1/de
Priority to SE7502140Aprioritypatent/SE7502140L/xx
Priority to NO750669Aprioritypatent/NO136963C/no
Publication of FI59674A7publicationCriticalpatent/FI59674A7/fi
Application grantedgrantedCritical
Publication of FI50490BpublicationCriticalpatent/FI50490B/fi