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发明名称
Measuring instrument
摘要
申请公布号
US2267539(A)
申请公布日期
1941.12.23
申请号
US19390302083
申请日期
1939.10.31
申请人
RADIO CORPORATION
发明人
THORNE EARIE DAYTON
分类号
G01R1/067
主分类号
G01R1/067
代理机构
代理人
主权项
地址
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