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发明名称
摘要
申请公布号
PL91437(B1)
申请公布日期
1977.02.28
申请号
PL19730167525
申请日期
1973.12.21
申请人
发明人
分类号
C03B23/04;(IPC1-7):C03B23/04
主分类号
C03B23/04
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代理人
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地址
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