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发明名称
Loud-speaker enclosure
摘要
申请公布号
US2810448(A)
申请公布日期
1957.10.22
申请号
US19540477753
申请日期
1954.12.27
申请人
DIJCK WILLEM J D VAN
发明人
DIJCK WILLEM J. D. VAN
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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