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经营范围
发明名称
Improvements in or relating to dictation apparatus comprising a record carrier in the form of a foil
摘要
申请公布号
GB745798(A)
申请公布日期
1956.02.29
申请号
GB19540018548
申请日期
1954.06.24
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
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主分类号
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