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发明名称
Horn for loud-speaker
摘要
申请公布号
US2310243(A)
申请公布日期
1943.02.09
申请号
US19400317260
申请日期
1940.02.05
申请人
RAY L. SMITH
发明人
KLIPSCH PAUL W.
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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