METHOD AND DEVICE FOR PROPULSIVE CONSTRUCTION OF BULKY GRAVEL STRATUM,申请号JP19880291849-传众专利搜索

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发明名称	METHOD AND DEVICE FOR PROPULSIVE CONSTRUCTION OF BULKY GRAVEL STRATUM
摘要
申请公布号	JPH02136496(A)	申请公布日期	1990.05.25
申请号	JP19880291849	申请日期	1988.11.18
申请人	DAIWA GIKEN KK	发明人	SUGIYAMA YOSHIHARU
分类号	E21D9/06;E21D9/14	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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