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经营范围
发明名称
Improvements in or relating to electric incandescent lamps or discharge tubes
摘要
申请公布号
GB751537(A)
申请公布日期
1956.06.27
申请号
GB19540012608
申请日期
1954.04.30
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H01K1/46
主分类号
H01K1/46
代理机构
代理人
主权项
地址
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