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Filing date
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Application filedfiledCritical
Priority to DD18643075ApriorityCriticalpatent/DD126246B1/xx
Priority to SU762356954Aprioritypatent/SU842691A1/ru
Priority to IN871/CAL/76Aprioritypatent/IN143174B/en
Priority to PL19009076Aprioritypatent/PL98344B1/pl
Publication of DD126246A1publicationCriticalpatent/DD126246A1/xx
Publication of DD126246B1publicationCriticalpatent/DD126246B1/xx