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Application filed by Matti Veikko Jaervilehto, Riitta Marja Annikki HarjulafiledCriticalMatti Veikko Jaervilehto
Priority to FI850960ApriorityCriticalpatent/FI72606C/en
Publication of FI850960A0publicationCriticalpatent/FI850960A0/en
Publication of FI850960LpublicationCriticalpatent/FI850960L/en
Publication of FI72606BpublicationCriticalpatent/FI72606B/en
Application grantedgrantedCritical
Publication of FI72606CpublicationCriticalpatent/FI72606C/en