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Application filed by V Zaochny Mashinostroitelny I, Dn Truboprokatny Z Im V I, Nikopolsky Juzhno Ttrubny ZfiledCriticalV Zaochny Mashinostroitelny I
Priority to IN984/CAL/80ApriorityCriticalpatent/IN152438B/en
Publication of IN152438BpublicationCriticalpatent/IN152438B/en