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经营范围
发明名称
Improved means for handling and feeding wire carrying sound records
摘要
申请公布号
GB517376(A)
申请公布日期
1940.01.29
申请号
GB19380018872
申请日期
1938.06.25
申请人
LIONEL SELBY WALLIS
发明人
分类号
G11B5/004
主分类号
G11B5/004
代理机构
代理人
主权项
地址
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