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发明名称
OPENING AND CLOSING DEVICE FOR MANHOLE COVER
摘要
申请公布号
JPH11323984(A)
申请公布日期
1999.11.26
申请号
JP19980145071
申请日期
1998.05.11
申请人
TAKASHU:KK
发明人
TAKAHASHI AKIO
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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