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发明名称
Pièce en charbon formant frotteur de grande résistance à la flexion pour organe de captation de courant de véhicules moteurs électriques
摘要
申请公布号
FR1144428(A)
申请公布日期
1957.10.14
申请号
FRD1144428
申请日期
1956.03.21
申请人
C. CONRADTY
发明人
分类号
B60L5/20
主分类号
B60L5/20
代理机构
代理人
主权项
地址
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