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发明名称
Perfectionnements aux appareils électromécaniques vibrants
摘要
申请公布号
FR854121(A)
申请公布日期
1940.04.05
申请号
FRD854121
申请日期
1938.12.14
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
B06B1/08
主分类号
B06B1/08
代理机构
代理人
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