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发明名称
摘要
申请公布号
DE2045853(A1)
申请公布日期
1971.03.25
申请号
DE19702045853
申请日期
1970.09.16
申请人
发明人
分类号
C01C1/24;(IPC1-7):C01C1/24
主分类号
C01C1/24
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代理人
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地址
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