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 CH1446463Aexternal-prioritypatent/CH417404A/de
Application filed by Oerlikon Buehrle Holding AgfiledCriticalOerlikon Buehrle Holding Ag
Publication of FI44992BpublicationCriticalpatent/FI44992B/fi
Application grantedgrantedCritical
Publication of FI44992CpublicationCriticalpatent/FI44992C/fi