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Application filed by Veikko Nummela OyfiledCriticalVeikko Nummela Oy
Priority to FI974530ApriorityCriticalpatent/FI103561B/fi
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Publication of FI974530ApublicationCriticalpatent/FI974530A/fi
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Publication of FI103561B1publicationCriticalpatent/FI103561B1/fi
Publication of FI103561BpublicationCriticalpatent/FI103561B/fi