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经营范围
发明名称
Dispositif de refroidissement
摘要
申请公布号
FR1007421(A)
申请公布日期
1952.05.06
申请号
FRD1007421
申请日期
1949.12.24
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H01J19/36
主分类号
H01J19/36
代理机构
代理人
主权项
地址
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