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发明名称
Installation de lampes électroniques travaillant en concordance ou en alternance
摘要
申请公布号
FR707003(A)
申请公布日期
1931.07.02
申请号
FRD707003
申请日期
1930.12.03
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
分类号
H03F3/22;H03F3/32
主分类号
H03F3/22
代理机构
代理人
主权项
地址
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