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发明名称
CONSTRUCTION OF MANHOLE
摘要
申请公布号
JPH01137021(A)
申请公布日期
1989.05.30
申请号
JP19870292631
申请日期
1987.11.19
申请人
OOIKE CONCRETE KOGYO KK;ASAHI MALLEABLE IRON CO LTD
发明人
OIKE ETSUJI;ITAKURA SHIZUKO
分类号
E03F5/02;E02D29/12;E04G15/06
主分类号
E03F5/02
代理机构
代理人
主权项
地址
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