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发明名称
Improvements in or relating to a device for adjusting the position of the air-gap ofa magnetic recording and/or reproducing head
摘要
申请公布号
GB773905(A)
申请公布日期
1957.05.01
申请号
GB19540035060
申请日期
1954.12.03
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
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主分类号
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