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发明名称
摘要
申请公布号	NL6711136(A)	申请公布日期	1968.02.20
申请号	NL19670011136	申请日期	1967.08.14
申请人		发明人
分类号	E04B9/04	主分类号	E04B9/04
代理机构		代理人
主权项
地址

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