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发明名称
Camera device
摘要
申请公布号
US2355136(A)
申请公布日期
1944.08.08
申请号
US19410413060
申请日期
1941.09.30
申请人
RADIO CORPORATION OF AMERICA
发明人
BEDFORD ALDA V.
分类号
G03B13/20
主分类号
G03B13/20
代理机构
代理人
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