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发明名称
Loud-speaker-diaphragm mounting
摘要
申请公布号
US1766014(A)
申请公布日期
1930.06.24
申请号
US19280247409
申请日期
1928.01.17
申请人
BRADLEY DEANE JOHN
发明人
DEANE JOHN BRADLEY
分类号
H04R7/16
主分类号
H04R7/16
代理机构
代理人
主权项
地址
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