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发明名称
摘要
申请公布号	FR958991(A)	申请公布日期	1950.03.22
申请号	FRD958991	申请日期
申请人		发明人
分类号	E04B1/49	主分类号	E04B1/49
代理机构		代理人
主权项
地址

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