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发明名称
Film drive mechanism
摘要
申请公布号
US2032398(A)
申请公布日期
1936.03.03
申请号
US19340718225
申请日期
1934.03.30
申请人
RADIO CORPORATION OF AMERICA
发明人
BRADY RAYMOND F.
分类号
G03B21/43
主分类号
G03B21/43
代理机构
代理人
主权项
地址
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