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Application filed by Trustul Petrolului,RofiledCriticalTrustul Petrolului,Ro
Priority to RO7272333ApriorityCriticalpatent/RO74660A2/ro
Publication of RO74660A2publicationCriticalpatent/RO74660A2/ro
RO7272333A1972-09-261972-09-26Mecanism pentru desurubat si insurubat imbinarile filetate la turbinele de foraj si alte materiale tubulare
RO74660A2
(ro)