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发明名称	STONE MATERIAL COLLECTING APPARATUS
摘要
申请公布号	JPS62211489(A)	申请公布日期	1987.09.17
申请号	JP19860051202	申请日期	1986.03.07
申请人	YAMAMOTO TEKKOSHO:KK	发明人	YAMAZAKI NOBUAKI
分类号	E21C41/26;E21C47/10	主分类号	E21C41/26
代理机构		代理人
主权项
地址

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