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发明名称
Positioning the specimen stage of optical apparatus
摘要
申请公布号
US2496051(A)
申请公布日期
1950.01.31
申请号
US19480023833
申请日期
1948.04.28
申请人
RADIO CORPORATION OF AMERICA
发明人
HILLIER JAMES
分类号
H01J37/20
主分类号
H01J37/20
代理机构
代理人
主权项
地址
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