,申请号BED741992-传众专利搜索

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发明名称
摘要
申请公布号	BE741992(A)	申请公布日期	1970.05.04
申请号	BED741992	申请日期	1969.11.20
申请人		发明人
分类号	E04B2/90;E04B1/61;E04B2/56;E04B2/88;E04C2/54;E04D3/06;E04D3/08;E04D3/362	主分类号	E04B2/90
代理机构		代理人
主权项
地址

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