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发明名称
Apparatus embodying electric discharge lamps
摘要
申请公布号
US1906246(A)
申请公布日期
1933.05.02
申请号
US19290401931
申请日期
1929.10.23
申请人
RADIO CORPORATION OF AMERICA
发明人
BROWNE CECIL OSWALD
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
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地址
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