MANHOLE COVER STRUCTURE,申请号JP19780080286-传众专利搜索

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发明名称	MANHOLE COVER STRUCTURE
摘要
申请公布号	JPS557354(A)	申请公布日期	1980.01.19
申请号	JP19780080286	申请日期	1978.06.30
申请人	HITACHI PLANT ENG & CONSTR CO	发明人	HIRAMOTO MICHIAKI;MURAYAMA KUNIO
分类号	E02D29/14	主分类号	E02D29/14
代理机构		代理人
主权项
地址

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