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发明名称
Improvements in or relating to change-speed devices
摘要
申请公布号
GB1043901(A)
申请公布日期
1966.09.28
申请号
GB19640002397
申请日期
1964.01.20
申请人
LOUIS HENRI DENIS MARIE BALLU
发明人
分类号
F16H61/662
主分类号
F16H61/662
代理机构
代理人
主权项
地址
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