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经营范围
发明名称
Improvements in or relating to record spindles for records having a large central aperture
摘要
申请公布号
GB791408(A)
申请公布日期
1958.03.05
申请号
GB19550031779
申请日期
1955.11.07
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
G11B17/14
主分类号
G11B17/14
代理机构
代理人
主权项
地址
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