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发明名称
Film driving mechanism
摘要
申请公布号
US2109767(A)
申请公布日期
1938.03.01
申请号
US19360082585
申请日期
1936.05.29
申请人
RADIO CORPORATION
发明人
COOK ELLSWORTH D.
分类号
G11B15/50
主分类号
G11B15/50
代理机构
代理人
主权项
地址
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