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 Bowens,Siegfried,DdfiledCriticalBowens,Siegfried,Dd
Priority to DD20158977ApriorityCriticalpatent/DD133461A1/de
Publication of DD133461A1publicationCriticalpatent/DD133461A1/de