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发明名称
Automatic electro-mechanical device for cutting gramophone records
摘要
申请公布号
GB621214(A)
申请公布日期
1949.04.06
申请号
GB19460015718
申请日期
1946.05.23
申请人
ITALO NINNI;GIOVANNI ROLUTI
发明人
分类号
G11B3/08
主分类号
G11B3/08
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代理人
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