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发明名称
Perfectionnements à la fabrication d'ampoules d'éclairage électrique colorées
摘要
申请公布号
FR712751(A)
申请公布日期
1931.10.10
申请号
FRD712751
申请日期
1931.03.06
申请人
IMPERIAL CHEMICAL INDUSTRIES LIMITED
发明人
分类号
H01J9/20
主分类号
H01J9/20
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代理人
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