Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/077,909external-prioritypatent/US4998649A/en
Application filed by Zeller Plastik Koehn GraebnerfiledCriticalZeller Plastik Koehn Graebner
Publication of NO900362D0publicationCriticalpatent/NO900362D0/en
Publication of NO900362LpublicationCriticalpatent/NO900362L/en