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发明名称
Variable speed device
摘要
申请公布号
US2273478(A)
申请公布日期
1942.02.17
申请号
US19390251552
申请日期
1939.01.18
申请人
ERIC LOCKE
发明人
THOMPSON JOHN H.
分类号
F16H9/12
主分类号
F16H9/12
代理机构
代理人
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地址
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