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发明名称
摘要
申请公布号	FR2449760(B2)	申请公布日期	1984.05.18
申请号	FR19790004574	申请日期	1979.02.22
申请人	BTP TECH SPECIALES SECURITE	发明人
分类号	E01C7/14;E01C11/14;E04D11/00;(IPC1-7):E01C11/08	主分类号	E01C7/14
代理机构		代理人
主权项
地址

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