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发明名称
摘要
申请公布号
JPH02149061(U)
申请公布日期
1990.12.18
申请号
JP19890057664U
申请日期
1989.05.18
申请人
发明人
分类号
E04D15/00;A62B35/00;E04G21/32;(IPC1-7):E04G21/32
主分类号
E04D15/00
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