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发明名称
摘要
申请公布号
FR2090944(A5)
申请公布日期
1972.01.14
申请号
FR19710015383
申请日期
1971.04.29
申请人
发明人
分类号
E05B65/20;E05B65/32;(IPC1-7):E05B65/00
主分类号
E05B65/20
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代理人
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