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经营范围
发明名称
Lampe-tube pour l'optique
摘要
申请公布号
FR875469(A)
申请公布日期
1942.09.23
申请号
FRD875469
申请日期
1941.09.22
申请人
PATENT-TREUHAND-GESELLSCHAFT FU:R ELEKTRISCHE GLU:HLAMPEN M. B. H.
发明人
分类号
H01J1/18;H01K1/24
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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