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发明名称
Means for improving the sound emitted by microphones, loudspeakers, and the like
摘要
申请公布号
US2263408(A)
申请公布日期
1941.11.18
申请号
US19360097255
申请日期
1936.08.21
申请人
GEORGE LAKHOVSKY
发明人
LAKHOVSKY GEORGE
分类号
H04R1/34
主分类号
H04R1/34
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代理人
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