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Application filed by Juhani LehikoinenfiledCriticalJuhani Lehikoinen
Priority to FI904995ApriorityCriticalpatent/FI87687C/fi
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Publication of FI904995ApublicationCriticalpatent/FI904995A/fi
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Publication of FI87687BpublicationCriticalpatent/FI87687B/fi
Publication of FI87687CpublicationCriticalpatent/FI87687C/fi