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发明名称
Improvements in or relating to change-speed gearing
摘要
申请公布号
GB869212(A)
申请公布日期
1961.05.31
申请号
GB19590005594
申请日期
1959.02.18
申请人
FRITZ UNGERER
发明人
分类号
B23D25/02
主分类号
B23D25/02
代理机构
代理人
主权项
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