CH564171A5CH401773ACH401773ACH564171A5CH 564171 A5CH564171 A5CH 564171A5CH 401773 ACH401773 ACH 401773ACH 401773 ACH401773 ACH 401773ACH 564171 A5CH564171 A5CH 564171A5
Authority
CH
Switzerland
Application number
CH401773A
Original Assignee
Den Berg Wilhelm Van
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 Den Berg Wilhelm VanfiledCriticalDen Berg Wilhelm Van
Priority to CH401773ApriorityCriticalpatent/CH564171A5/xx
Priority to DE19742413275prioritypatent/DE2413275A1/de
Publication of CH564171A5publicationCriticalpatent/CH564171A5/xx