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 Sykora Jan, Jan Ing Csc WanglerfiledCriticalSykora Jan
Priority to CS857939ApriorityCriticalpatent/CS254466B1/en
Priority to SU857774054Aprioritypatent/SU1587294A1/en
Priority to HU855013Aprioritypatent/HU193455B/en
Priority to US06/814,642prioritypatent/US4680989A/en
Publication of CS793985A1publicationCriticalpatent/CS793985A1/en
Publication of CS254466B1publicationCriticalpatent/CS254466B1/en