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发明名称
摘要
申请公布号
GB1259202(A)
申请公布日期
1972.01.05
申请号
GBD1259202
申请日期
1969.06.25
申请人
发明人
分类号
E04B2/08;E04B2/12
主分类号
E04B2/08
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代理人
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地址
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