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发明名称
摘要
申请公布号
JP2588049(B2)
申请公布日期
1997.03.05
申请号
JP19900168072
申请日期
1990.06.25
申请人
KOTOGAWA KK
发明人
SASAOKA RYOSUKE
分类号
E04D1/04;E04D1/12;(IPC1-7):E04D1/12
主分类号
E04D1/04
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