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
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Application filedfiledCritical
Priority to CH821580ApriorityCriticalpatent/CH655607B/de
Priority to DE19813140112prioritypatent/DE3140112A1/de
Priority to US06/317,859prioritypatent/US4427858A/en
Priority to BR8107101Aprioritypatent/BR8107101A/pt
Publication of CH655607BpublicationCriticalpatent/CH655607B/de