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发明名称
HOLE OPENING AND CLOSING MECHANISM OR COVER FOR UNDERGROUND STRUCTURE
摘要
申请公布号
JPH06220877(A)
申请公布日期
1994.08.09
申请号
JP19930010210
申请日期
1993.01.25
申请人
HINODE SUIDO KIKI KK
发明人
HIDAKA YOSHIKAZU
分类号
E02D29/14;(IPC1-7):E02D29/14
主分类号
E02D29/14
代理机构
代理人
主权项
地址
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