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经营范围
发明名称
Glowlamp
摘要
申请公布号
US1954421(A)
申请公布日期
1934.04.10
申请号
US19310535934
申请日期
1931.05.08
申请人
RADIO INVENTIONS, INC.
发明人
MARVIN STUART F.;KAYATT PHILIP J.
分类号
H01J17/00
主分类号
H01J17/00
代理机构
代理人
主权项
地址
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