,申请号FRD1566817-传众专利搜索

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发明名称
摘要
申请公布号	FR1566817(A)	申请公布日期	1969.05.09
申请号	FRD1566817	申请日期	1968.04.04
申请人		发明人
分类号	E01C19/48	主分类号	E01C19/48
代理机构		代理人
主权项
地址

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