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Application filed by Pisarev, IvanovfiledCriticalPisarev
Priority to BG7634937ApriorityCriticalpatent/BG24455A1/en
Publication of BG24455A1publicationCriticalpatent/BG24455A1/en
BG7634937A1976-12-201976-12-20Apparatus for dropping the new and changing the old ropes by the mine onerope and miltirope lifting machine "kope"
BG24455A1
(en)