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发明名称
ADJUSTABLE-SPEED POLYPHASE ALTERNATING-CURRENT MOTOR APPARATUS
摘要
申请公布号
CA469246(A)
申请公布日期
1950.11.07
申请号
CAD469246
申请日期
申请人
THE SUPERIOR ELECTRIC COMPANY
发明人
ALBERT G. CONRAD
分类号
主分类号
代理机构
代理人
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