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Application filed by Sigvald SoedermanfiledCriticalSigvald Soederman
Priority to FI803224ApriorityCriticalpatent/FI64712C/en
Publication of FI803224LpublicationCriticalpatent/FI803224L/en
Application grantedgrantedCritical
Publication of FI64712BpublicationCriticalpatent/FI64712B/en
Publication of FI64712CpublicationCriticalpatent/FI64712C/en