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Priority claimed from DE3012295Aexternal-prioritypatent/DE3012295C2/de
Publication of NO885624LpublicationCriticalpatent/NO885624L/no
Application filed by Manfred HawerkampfiledCriticalManfred Hawerkamp
Priority to NO885624ApriorityCriticalpatent/NO169053C/no
Publication of NO885624D0publicationCriticalpatent/NO885624D0/no
Publication of NO169053BpublicationCriticalpatent/NO169053B/no
Publication of NO169053CpublicationCriticalpatent/NO169053C/no