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经营范围
发明名称
A magnetic scanning device, particularly for use in telephone sub-stations
摘要
申请公布号
GB834644(A)
申请公布日期
1960.05.11
申请号
GB19580020078
申请日期
1958.06.23
申请人
AUTOPHON A.-G.
发明人
分类号
G11B5/17;G11B5/48;G11B5/55;H04M1/27;H04M1/272
主分类号
G11B5/17
代理机构
代理人
主权项
地址
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