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发明名称
Prefocused incandescent electric lamp
摘要
申请公布号
US1760693(A)
申请公布日期
1930.05.27
申请号
US19250060383
申请日期
1925.10.05
申请人
WESTINGHOUSE LAMP COMPANY
发明人
GUSTIN DANIEL SNYDER
分类号
H01K3/20
主分类号
H01K3/20
代理机构
代理人
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