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 Kemira OyfiledCriticalKemira Oy
Priority to FI850574ApriorityCriticalpatent/FI70771C/fi
Publication of FI850574A0publicationCriticalpatent/FI850574A0/fi
Publication of FI70771BpublicationCriticalpatent/FI70771B/fi
Application grantedgrantedCritical
Publication of FI70771CpublicationCriticalpatent/FI70771C/fi