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经营范围
发明名称
Phase modulation
摘要
申请公布号
US2259392(A)
申请公布日期
1941.10.14
申请号
US19390262631
申请日期
1939.03.18
申请人
RADIO CORPORATION OF AMERICA
发明人
ROBERTS WALTER VAN B.
分类号
H03C3/24
主分类号
H03C3/24
代理机构
代理人
主权项
地址
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