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发明名称
Cathode à incandescence pour tubes à rayons électroniques
摘要
申请公布号
FR814076(A)
申请公布日期
1937.06.14
申请号
FRD814076
申请日期
1936.11.16
申请人
RADIOAKTIENGESELLSCHAFT D. S. LOEWE
发明人
分类号
H01J29/62
主分类号
H01J29/62
代理机构
代理人
主权项
地址
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