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发明名称
Means for obtaining flame effects in negative glow devices
摘要
申请公布号
US2020413(A)
申请公布日期
1935.11.12
申请号
US19310538052
申请日期
1931.05.18
申请人
HENNINGER JR ANDREW F
发明人
JR. ANDREW F. HENNINGER,
分类号
H01J17/49
主分类号
H01J17/49
代理机构
代理人
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