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发明名称
摘要
申请公布号
DE2025512(A1)
申请公布日期
1971.04.22
申请号
DE19702025512
申请日期
1970.05.25
申请人
发明人
分类号
B01J23/00;B01J23/72;C11C3/12;(IPC1-7):C11C3/12
主分类号
B01J23/00
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代理人
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