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 DD16749872ApriorityCriticalpatent/DD100810A1/xx
Priority to CH1187373Aprioritypatent/CH569286A5/xx
Publication of DD100810A1publicationCriticalpatent/DD100810A1/xx
Priority to DE19732358858prioritypatent/DE2358858A1/de