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 Vaclav Tomsa, Josef Spidra, Bohumil Ludikar, Mayr Karl JfiledCriticalVaclav Tomsa
Publication of CH5543ApublicationCriticalpatent/CH5543A/de