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经营范围
发明名称
Illumination
摘要
申请公布号
US2070700(A)
申请公布日期
1937.02.16
申请号
US19340753437
申请日期
1934.11.17
申请人
WELSBACH STREET LIGHTING COMPANY
发明人
WHITTAKER JOHN D.
分类号
H01K1/32
主分类号
H01K1/32
代理机构
代理人
主权项
地址
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