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发明名称
Motor control
摘要
申请公布号
US1890754(A)
申请公布日期
1932.12.13
申请号
US19300451157
申请日期
1930.05.09
申请人
SHEPARD OSCAR F
发明人
SHEPARD OSCAR F.
分类号
B66B1/08
主分类号
B66B1/08
代理机构
代理人
主权项
地址
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