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发明名称
Change speed gear
摘要
申请公布号
US1862993(A)
申请公布日期
1932.06.14
申请号
US19300485211
申请日期
1930.09.29
申请人
WISE PATENT AND DEVELOPMENT COMPANY
发明人
WISE ROY T.
分类号
F16H3/083
主分类号
F16H3/083
代理机构
代理人
主权项
地址
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