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经营范围
发明名称
Improvements in or relating to automatic control mechanisms for gramophones
摘要
申请公布号
GB629273(A)
申请公布日期
1949.09.15
申请号
GB19460026175
申请日期
1946.08.30
申请人
EDMUND STANSFIELD MALLETT;DONALD FREDERICK SPEAR
发明人
分类号
G11B3/08
主分类号
G11B3/08
代理机构
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地址
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