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发明名称
摘要
申请公布号	JPS61138(B2)	申请公布日期	1986.01.06
申请号	JP19810118781	申请日期	1981.07.28
申请人	HITACHI SHIPBUILDING ENG CO	发明人	TAMEI AKIRA
分类号	B02C4/42;B02C25/00	主分类号	B02C4/42
代理机构		代理人
主权项
地址

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