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 Jorma Antero PitkaenenfiledCriticalJorma Antero Pitkaenen
Priority to FI972983ApriorityCriticalpatent/FI105590B/en
Publication of FI972983A0publicationCriticalpatent/FI972983A0/en
Publication of FI972983ApublicationCriticalpatent/FI972983A/en
Application grantedgrantedCritical
Publication of FI105590BpublicationCriticalpatent/FI105590B/en