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Application filed by Tapani Tirkkonen OyfiledCriticalTapani Tirkkonen Oy
Priority to FI971212ApriorityCriticalpatent/FI105417B/fi
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Publication of FI971212ApublicationCriticalpatent/FI971212A/fi
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Publication of FI105417BpublicationCriticalpatent/FI105417B/fi