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 CS757074ApriorityCriticalpatent/CS171049B1/cs
Priority to DE19752546227prioritypatent/DE2546227A1/de
Priority to RO8363875Aprioritypatent/RO69934A/ro
Priority to YU264275Aprioritypatent/YU264275A/xx
Priority to DD18913975Aprioritypatent/DD121826A1/xx
Publication of CS171049B1publicationCriticalpatent/CS171049B1/cs