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Application filed by V Matti TojkanderfiledCriticalV Matti Tojkander
Priority to FI3555/74ApriorityCriticalpatent/FI55818C/fi
Priority to CA241,075Aprioritypatent/CA1040617A/en
Publication of FI355574A7publicationCriticalpatent/FI355574A7/fi
Publication of FI55818BpublicationCriticalpatent/FI55818B/fi
Application grantedgrantedCritical
Publication of FI55818CpublicationCriticalpatent/FI55818C/fi