GROUND DRILLING DEVICE WITH SHOCK MECHANISM,申请号JP19920023413-传众专利搜索

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发明名称	GROUND DRILLING DEVICE WITH SHOCK MECHANISM
摘要
申请公布号	JPH05187177(A)	申请公布日期	1993.07.27
申请号	JP19920023413	申请日期	1992.01.14
申请人	YOSHIDA TEKKOSHO:KK	发明人	YOSHIDA MITSUHIRO
分类号	E21B6/02;E21B6/00	主分类号	E21B6/02
代理机构		代理人
主权项
地址

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