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Priority claimed from FI833810Aexternal-prioritypatent/FI68573C/en
Application filed by Fredrik Kullervo BurmeisterfiledCriticalFredrik Kullervo Burmeister
Publication of NO852329LpublicationCriticalpatent/NO852329L/en
Publication of NO158409BpublicationCriticalpatent/NO158409B/en
Publication of NO158409CpublicationCriticalpatent/NO158409C/en