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Application filed by Heikki Akseli Tuomala, Matti Viljami TuomalafiledCriticalHeikki Akseli Tuomala
Priority to FI362372ApriorityCriticalpatent/FI50219C/fi
Publication of FI50219BpublicationCriticalpatent/FI50219B/fi
Application grantedgrantedCritical
Publication of FI50219CpublicationCriticalpatent/FI50219C/fi