EARTH MOVING METHOD IN PIPING PROPULSIVE WORK,申请号JP19900188337-传众专利搜索

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发明名称	EARTH MOVING METHOD IN PIPING PROPULSIVE WORK
摘要
申请公布号	JPH0476196(A)	申请公布日期	1992.03.10
申请号	JP19900188337	申请日期	1990.07.17
申请人	KYOKUTO KAIHATSU KOGYO CO LTD	发明人	MAEKAWA TAKENORI;OTSUKA TADAO
分类号	E21D9/12	主分类号	E21D9/12
代理机构		代理人
主权项
地址

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