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
Application filedfiledCritical
Priority to DD164475ApriorityCriticalpatent/DD98190A1/xx
Priority to DE2328150Aprioritypatent/DE2328150A1/de
Publication of DD98190A1publicationCriticalpatent/DD98190A1/xx
