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Priority to FI935268ApriorityCriticalpatent/FI94952C/en
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Publication of FI935268ApublicationCriticalpatent/FI935268A/en
Application grantedgrantedCritical
Publication of FI94952BpublicationCriticalpatent/FI94952B/en
Publication of FI94952CpublicationCriticalpatent/FI94952C/en