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 Westvaco CorpfiledCriticalWestvaco Corp
Priority to FI864942ApriorityCriticalpatent/FI86072C/en
Publication of FI864942A0publicationCriticalpatent/FI864942A0/en
Publication of FI864942ApublicationCriticalpatent/FI864942A/en
Publication of FI86072BpublicationCriticalpatent/FI86072B/en
Application grantedgrantedCritical
Publication of FI86072CpublicationCriticalpatent/FI86072C/en