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Application filed by Akustikbyran AbfiledCriticalAkustikbyran Ab
Priority to FI35074ApriorityCriticalpatent/FI53022C/fi
Publication of FI740350A0publicationCriticalpatent/FI740350A0/fi
Application grantedgrantedCritical
Publication of FI53022BpublicationCriticalpatent/FI53022B/fi
Publication of FI53022CpublicationCriticalpatent/FI53022C/fi