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经营范围
发明名称
MAGNETISCHES AUFZEICHNUNGSMEDIUM
摘要
申请公布号
DE3029820(A1)
申请公布日期
1981.03.26
申请号
DE19803029820
申请日期
1980.08.06
申请人
SONY CORP.
发明人
NAKAJIMA,KAORU;KOBAYASHI,KUNIO;HISAGEN,YOSHIAKI
分类号
C09D5/23;G11B5/702;G11B5/71;G11B5/73;(IPC1-7):G11B5/68
主分类号
C09D5/23
代理机构
代理人
主权项
地址
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