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发明名称
Electric controlling apparatus
摘要
申请公布号
US1981921(A)
申请公布日期
1934.11.27
申请号
US19320628135
申请日期
1932.08.10
申请人
WARD LEONARD ELECTRIC COMPANY
发明人
LOGAN FRANK G.
分类号
G05F1/32;H03F9/02
主分类号
G05F1/32
代理机构
代理人
主权项
地址
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