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发明名称
Isolant céramique
摘要
申请公布号
FR836204(A)
申请公布日期
1939.01.12
申请号
FRD836204
申请日期
1938.04.05
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
C04B35/46;H01G4/12
主分类号
C04B35/46
代理机构
代理人
主权项
地址
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