PIT EXCAVATION APPARATUS,申请号JP19850217974-传众专利搜索

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发明名称	PIT EXCAVATION APPARATUS
摘要
申请公布号	JPS6278397(A)	申请公布日期	1987.04.10
申请号	JP19850217974	申请日期	1985.10.02
申请人	MITSUI CONSTR CO LTD	发明人	KAWAHARA YOSHIAKI
分类号	E21D1/00;E21D1/04	主分类号	E21D1/00
代理机构		代理人
主权项
地址

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