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发明名称
Gaseous conduction device
摘要
申请公布号
US2053507(A)
申请公布日期
1936.09.08
申请号
US19340730584
申请日期
1934.06.14
申请人
BARCLAY ROBERT E
发明人
BARCLAY ROBERT E.
分类号
H01J61/10;H01J61/30
主分类号
H01J61/10
代理机构
代理人
主权项
地址
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