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发明名称
SHIELD SEGMENT
摘要
申请公布号
JPH02252897(A)
申请公布日期
1990.10.11
申请号
JP19890074401
申请日期
1989.03.27
申请人
TAISEI CORP
发明人
INO TOSHIMI;KANEKO KENICHI
分类号
E21D11/08;E21D11/36
主分类号
E21D11/08
代理机构
代理人
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