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发明名称
Mechanical gear ratio changing mechanism
摘要
申请公布号
US2789445(A)
申请公布日期
1957.04.23
申请号
US19530365126
申请日期
1953.06.30
申请人
GEORGE KAUFMANN KARL;LEE OWINGS JAMES
发明人
KAUFMANN KARL GEORGE;OWINGS JAMES LEE
分类号
F16H3/34
主分类号
F16H3/34
代理机构
代理人
主权项
地址
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