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经营范围
发明名称
Perfectionnement aux systèmes de réglage automatique à haute précision des fréquences d'un émetteur ou d'un récepteur d'ondes hertziennes
摘要
申请公布号
FR56137(E)
申请公布日期
1952.09.17
申请号
FRD56137
申请日期
1944.04.28
申请人
SOCIETE INDUSTRIELLE DES PROCEDES LOTH
发明人
分类号
H03B21/02
主分类号
H03B21/02
代理机构
代理人
主权项
地址
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