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发明名称
Variable speed device
摘要
申请公布号
US1812877(A)
申请公布日期
1931.07.07
申请号
US19300443680
申请日期
1930.04.12
申请人
IVES CLIFFORD E
发明人
IVES CLIFFORD E.
分类号
F16H37/08
主分类号
F16H37/08
代理机构
代理人
主权项
地址
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