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 FI123572ApriorityCriticalpatent/FI50473C/fi
Application grantedgrantedCritical
Publication of FI50473BpublicationCriticalpatent/FI50473B/fi
Publication of FI50473CpublicationCriticalpatent/FI50473C/fi