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发明名称
MANHOLE COVER
摘要
申请公布号
JPH01223223(A)
申请公布日期
1989.09.06
申请号
JP19880050676
申请日期
1988.03.03
申请人
IMABAYASHI YOSHIMASA
发明人
IMABAYASHI YOSHIMASA
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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