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发明名称
摘要
申请公布号
JPS61168249(U)
申请公布日期
1986.10.18
申请号
JP19850051717U
申请日期
1985.04.09
申请人
发明人
分类号
E04G21/16;E01D2/00;E01D21/00;E01D101/24;E04G21/18;E04G25/00;E04G25/04;(IPC1-7):E04G25/04
主分类号
E04G21/16
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代理人
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地址
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