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经营范围
发明名称
Glow lamp
摘要
申请公布号
US1969566(A)
申请公布日期
1934.08.07
申请号
US19320638469
申请日期
1932.10.19
申请人
BERKMONT COMPANY
发明人
KOWVALLIS THEODORE
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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