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发明名称
Perfectionnement au montage des électro-aimants dans leurs armatures
摘要
申请公布号
FR687142(A)
申请公布日期
1930.08.05
申请号
FRD687142
申请日期
1929.12.23
申请人
SOCIETE ANONYME DES AEROPLANES G. VOISIN
发明人
分类号
H04R13/00
主分类号
H04R13/00
代理机构
代理人
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