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Application filed by Pekka Juhani LihavainenfiledCriticalPekka Juhani Lihavainen
Priority to FI872145ApriorityCriticalpatent/FI78608C/fi
Publication of FI872145A0publicationCriticalpatent/FI872145A0/fi
Publication of FI872145ApublicationCriticalpatent/FI872145A/fi
Publication of FI78608BpublicationCriticalpatent/FI78608B/fi
Application grantedgrantedCritical
Publication of FI78608CpublicationCriticalpatent/FI78608C/fi