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Priority to DD18843575ApriorityCriticalpatent/DD125526A3/xx
Priority to BG3202476Aprioritypatent/BG22980A1/xx
Priority to DE19762639798prioritypatent/DE2639798A1/de
Priority to GB3840276Aprioritypatent/GB1524404A/en
Priority to SU762398801Aprioritypatent/SU646377A1/ru
Publication of DD125526A3publicationCriticalpatent/DD125526A3/xx