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Priority to FI832678ApriorityCriticalpatent/FI66991C/fi
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Publication of FI66991CpublicationCriticalpatent/FI66991C/fi
Foerfarande foer maetning av helhetstrycket av en i inloppslaaodan i en pappersmaskin stroemmande massasuspension och slutet regleringssystem foer tillaempande av foerfarandet