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
Priority claimed from CH749276Aexternal-prioritypatent/CH607635A5/xx
Application filed by Escher Wyss AgfiledCriticalEscher Wyss Ag
Publication of ATA642677ApublicationCriticalpatent/ATA642677A/de
Application grantedgrantedCritical
Publication of AT353092BpublicationCriticalpatent/AT353092B/de