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 Josef StepanekfiledCriticalJosef Stepanek
Priority to DK182948ApriorityCriticalpatent/DK74731C/da
Application grantedgrantedCritical
Publication of DK74731CpublicationCriticalpatent/DK74731C/da