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 filedfiledCritical
Priority to DD17395373ApriorityCriticalpatent/DD111675A1/xx
Priority to IN99/CAL/1974Aprioritypatent/IN141272B/en
Priority to CS688674Aprioritypatent/CS168359B1/cs
Priority to HULE000758prioritypatent/HU179035B/hu
Publication of DD111675A1publicationCriticalpatent/DD111675A1/xx