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经营范围
发明名称
Improvements in or relating to a method of manufacturing a partly internally silvered tubular incandescent lamp
摘要
申请公布号
GB788269(A)
申请公布日期
1957.12.23
申请号
GB19560000068
申请日期
1956.01.02
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H01K1/24
主分类号
H01K1/24
代理机构
代理人
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