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发明名称
Improvements in or relating to the manufacture of magnetic records
摘要
申请公布号
GB920653(A)
申请公布日期
1963.03.13
申请号
GB19580032969
申请日期
1958.10.15
申请人
LESLIE FARRER-BROWN
发明人
GROAK JOSEF
分类号
G11B5/74;G11B5/86
主分类号
G11B5/74
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