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Priority claimed from FI884306Aexternal-prioritypatent/FI884306A/fi
Application filed by Kullervo PihlajamaafiledCriticalKullervo Pihlajamaa
Priority to FI910983ApriorityCriticalpatent/FI90450C/sv
Publication of FI910983A0publicationCriticalpatent/FI910983A0/sv
Publication of FI90450BpublicationCriticalpatent/FI90450B/sv
Application grantedgrantedCritical
Publication of FI90450CpublicationCriticalpatent/FI90450C/sv