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发明名称
Perfectionnements se rapportant aux circuits comportant des tubes thermoioniques
摘要
申请公布号
FR806818(A)
申请公布日期
1936.12.26
申请号
FRD806818
申请日期
1936.04.29
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H03F1/36;H03F3/28;H03F3/32;H04B1/16
主分类号
H03F1/36
代理机构
代理人
主权项
地址
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