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发明名称
PRODUCTION OF MAGNETIC PARTICLES
摘要
申请公布号
GB2067541(A)
申请公布日期
1981.07.30
申请号
GB19810000896
申请日期
1981.01.13
申请人
TDK ELECTRONICS CO LTD
发明人
分类号
B22F9/22;C01G49/00;C01G49/02;C09D5/23;C09D7/12;G11B5/706;H01F1/06;H01F1/11
主分类号
B22F9/22
代理机构
代理人
主权项
地址
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