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 Phillips Petroleum CofiledCriticalPhillips Petroleum Co
Priority to FI880703ApriorityCriticalpatent/FI89477C/fi
Publication of FI880703A0publicationCriticalpatent/FI880703A0/fi
Publication of FI880703ApublicationCriticalpatent/FI880703A/fi
Application grantedgrantedCritical
Publication of FI89477BpublicationCriticalpatent/FI89477B/fi
Publication of FI89477CpublicationCriticalpatent/FI89477C/fi