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 Diepenbrock & Reigers N VfiledCriticalDiepenbrock & Reigers N V
Application grantedgrantedCritical
Publication of AT180691BpublicationCriticalpatent/AT180691B/en