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发明名称
Multiple speed hub with automatically varying transmission ratio
摘要
申请公布号
US3143005(A)
申请公布日期
1964.08.04
申请号
US19620244073
申请日期
1962.12.12
申请人
FICHTEL & SACHS A. G.
发明人
SCHWERDHOFER HANS JOACHIM
分类号
B62M11/14
主分类号
B62M11/14
代理机构
代理人
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