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发明名称
ELECTRO-MAGNETICALLY CONTROLLED APPARATUS AND METHOD THEREFOR
摘要
申请公布号
CA459664(A)
申请公布日期
1949.09.13
申请号
CAD459664
申请日期
申请人
EMPIRE ELECTRIC BRAKE COMPANY
发明人
WILLIAM F. PENROSE
分类号
主分类号
代理机构
代理人
主权项
地址
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