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发明名称
摘要
申请公布号
DE2121174(A1)
申请公布日期
1971.11.25
申请号
DE19712121174
申请日期
1971.04.29
申请人
发明人
分类号
C09B45/04;C09B31/153;C09B45/02;C09B62/006;C09B62/012;(IPC1-7):C09B45/04
主分类号
C09B45/04
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