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经营范围
发明名称
Roues libres avec boîtes à rouleaux anti-friction
摘要
申请公布号
FR684337(A)
申请公布日期
1930.06.24
申请号
FRD684337
申请日期
1929.11.04
申请人
发明人
KLEIN WILLIAM CHRISTIAN
分类号
B60B17/00
主分类号
B60B17/00
代理机构
代理人
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