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发明名称
SHIIRUDOKOHONIOKERUTEERUBOIDORAGOMECHUNYUKOHO
摘要
申请公布号
JPH0227518(B2)
申请公布日期
1990.06.18
申请号
JP19810033171
申请日期
1981.03.10
申请人
MAEDA CONSTRUCTION
发明人
AOYAMA KIKUO;KOBAYASHI TATEO
分类号
E21D11/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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