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Priority to FI944460ApriorityCriticalpatent/FI97947C/sv
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Publication of FI944460ApublicationCriticalpatent/FI944460A/sv
Publication of FI97947BpublicationCriticalpatent/FI97947B/sv
Application grantedgrantedCritical
Publication of FI97947CpublicationCriticalpatent/FI97947C/sv