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Application filed by Insinoeoeritoimisto Pekka SorsfiledCriticalInsinoeoeritoimisto Pekka Sors
Priority to FI883132ApriorityCriticalpatent/FI79660C/fi
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Publication of FI79660BpublicationCriticalpatent/FI79660B/fi
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Publication of FI79660CpublicationCriticalpatent/FI79660C/fi