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发明名称
Dispositif compensateur de phases
摘要
申请公布号
FR697988(A)
申请公布日期
1931.01.26
申请号
FRD697988
申请日期
1929.10.05
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H03H7/30
主分类号
H03H7/30
代理机构
代理人
主权项
地址
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