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发明名称
DUPLEX REGULATING SWITCH
摘要
申请公布号
CA366361(A)
申请公布日期
1937.05.25
申请号
CAD366361
申请日期
申请人
ALFRED F. BUCK
发明人
ALFRED F. BUCK
分类号
主分类号
代理机构
代理人
主权项
地址
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