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经营范围
发明名称
Phase indicating apparatus
摘要
申请公布号
US2328985(A)
申请公布日期
1943.09.07
申请号
US19410417390
申请日期
1941.10.31
申请人
RADIO CORPORATION OF AMERICA
发明人
LUCK DAVID G. C.
分类号
G01R25/00
主分类号
G01R25/00
代理机构
代理人
主权项
地址
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