STOETDEMPER FOR DYPBORINGSSTANG.,申请号NO19770001153-传众专利搜索

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发明名称	STOETDEMPER FOR DYPBORINGSSTANG.
摘要
申请公布号	NO771153(A)	申请公布日期	1978.04.25
申请号	NO19770001153	申请日期	1977.03.31
申请人	CHRISTENSEN, INC.,	发明人	JURGENS, RAINER,
分类号	E21B17/07;(IPC1-7):E21B/	主分类号	E21B17/07
代理机构		代理人
主权项
地址

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