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发明名称
MANHOLE COVER FOR SNOWY DISTRICT AND ITS PRODUCTION
摘要
申请公布号
JPH05112957(A)
申请公布日期
1993.05.07
申请号
JP19910165613
申请日期
1991.07.05
申请人
HOKUSHIN KENSETSU KK
发明人
YAGIWATARI TAMIAKI;YOSHIDA KOJI
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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