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发明名称
SCR MOTOR CONTROL SYSTEMS WITH SWITCH FOR SELECTING TWO SPEED RANGES
摘要
申请公布号
US3493832(A)
申请公布日期
1970.02.03
申请号
USD3493832
申请日期
1967.12.29
申请人
SINGER CO.:THE
发明人
EDWARD H. KAY
分类号
H02P7/295;(IPC1-7):H02P7/38
主分类号
H02P7/295
代理机构
代理人
主权项
地址
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