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经营范围
发明名称
Perfectionnement aux films magnétiques
摘要
申请公布号
FR985701(A)
申请公布日期
1951.07.23
申请号
FRD985701
申请日期
1949.05.05
申请人
发明人
COCHET GABRIEL
分类号
C09D5/23;G11B5/71
主分类号
C09D5/23
代理机构
代理人
主权项
地址
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