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发明名称
摘要
申请公布号
BE702002(A)
申请公布日期
1968.01.29
申请号
BED702002
申请日期
1967.07.28
申请人
发明人
分类号
C09D5/23;G06K19/02;G11B5/62;H01F41/16
主分类号
C09D5/23
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代理人
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