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经营范围
发明名称
Loudspeaker assembly having loudspeaker wholly supported by vibratory diaphragm
摘要
申请公布号
US3275100(A)
申请公布日期
1966.09.27
申请号
US19650464451
申请日期
1965.06.16
申请人
DUNNING WILLIAM S
发明人
DUNNING WILLIAM S.
分类号
H04R1/28
主分类号
H04R1/28
代理机构
代理人
主权项
地址
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