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发明名称
Electric controlling apparatus
摘要
申请公布号
US1982007(A)
申请公布日期
1934.11.27
申请号
US19310562226
申请日期
1931.09.11
申请人
WARD LEONARD ELECTRIC COMPANY
发明人
LOGAN FRANK G.
分类号
H02M7/06
主分类号
H02M7/06
代理机构
代理人
主权项
地址
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