DEVICE FOR DETERMINING THE COST-PER-METRE VALUE AT DIAMOHD DRILLING,申请号SU19742033775-传众专利搜索

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发明名称	DEVICE FOR DETERMINING THE COST-PER-METRE VALUE AT DIAMOHD DRILLING
摘要
申请公布号	SU571586(A1)	申请公布日期	1977.09.05
申请号	SU19742033775	申请日期	1974.06.17
申请人	SVERDLOVSKIJ GORNYJ I IM. V.V.VAKHRUSHEVA	发明人	PETROV ILYA P,SU;KALYGIN EVGENIJ V,SU
分类号	E21B45/00;(IPC1-7):E21B45/00	主分类号	E21B45/00
代理机构		代理人
主权项
地址

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