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发明名称
摘要
申请公布号
CH671761(A4)
申请公布日期
1964.08.31
申请号
CH19610006717D
申请日期
1961.06.09
申请人
发明人
分类号
G04C3/06
主分类号
G04C3/06
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代理人
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地址
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