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发明名称
Optical system and method of adjustment thereof
摘要
申请公布号
US2158307(A)
申请公布日期
1939.05.16
申请号
US19360102271
申请日期
1936.09.24
申请人
RADIO CORPORATION OF AMERICA
发明人
SACHTLEBEN LAWRENCE T.
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
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