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经营范围
发明名称
Perfectionnements aux roulements à billes
摘要
申请公布号
FR865442(A)
申请公布日期
1941.05.23
申请号
FRD865442
申请日期
1940.05.06
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
H01J35/10
主分类号
H01J35/10
代理机构
代理人
主权项
地址
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