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发明名称
DAMPING FOR DYNAMIC LOUDSPEAKERS
摘要
申请公布号
CA462829(A)
申请公布日期
1950.01.31
申请号
CAD462829
申请日期
申请人
CANADIAN GENERAL ELECTRIC COMPANY
发明人
ELLSWORTH D. COOK
分类号
主分类号
代理机构
代理人
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