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发明名称
摘要
申请公布号
DD102159(A5)
申请公布日期
1973.12.05
申请号
DD19720161627
申请日期
1972.03.17
申请人
发明人
分类号
C09B62/008;(IPC1-7):C09B62/00;C09B29/32
主分类号
C09B62/008
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代理人
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