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 filed by Michael WiederholdfiledCriticalMichael Wiederhold
Priority to DD19881177ApriorityCriticalpatent/DD131301B1/de
Publication of DD131301A1publicationCriticalpatent/DD131301A1/de
Publication of DD131301B1publicationCriticalpatent/DD131301B1/de