METHOD OF MAKING MALE AND FEMALE ENDS OF DRILL PIPES,申请号SU19762421551-传众专利搜索

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发明名称	METHOD OF MAKING MALE AND FEMALE ENDS OF DRILL PIPES
摘要
申请公布号	SU583856(A1)	申请公布日期	1977.12.15
申请号	SU19762421551	申请日期	1976.11.29
申请人	VNI PT I NEFTYANOGO MASHINOSTROENIYA	发明人	AKHADOV GANDALI G,SU;ASADOV FAZIL S,SU
分类号	B21J5/12;(IPC1-7):B21J5/12	主分类号	B21J5/12
代理机构		代理人
主权项
地址

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