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经营范围
发明名称
Motion picture theater
摘要
申请公布号
US2334351(A)
申请公布日期
1943.11.16
申请号
US19420461391
申请日期
1942.10.09
申请人
RADIO CORPORATION OF AMERICA
发明人
OWENS JAMES H.
分类号
F21S2/00
主分类号
F21S2/00
代理机构
代理人
主权项
地址
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