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发明名称
摘要
申请公布号	FR2069993(A1)	申请公布日期	1971.09.10
申请号	FR19690044714	申请日期	1969.12.23
申请人	SOCATRAL	发明人
分类号	E04B1/343;E04B2/78;(IPC1-7):E04B2/00	主分类号	E04B1/343
代理机构		代理人
主权项
地址

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