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 Bertil StaalhanefiledCriticalBertil Staalhane
Application grantedgrantedCritical
Publication of DK81358CpublicationCriticalpatent/DK81358C/da