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发明名称
Improvements in electrostatic loudspeakers
摘要
申请公布号
GB537931(A)
申请公布日期
1941.07.14
申请号
GB19400003308
申请日期
1940.02.21
申请人
DONOVAN ERNEST LEA SHORTER
发明人
分类号
H04R19/02
主分类号
H04R19/02
代理机构
代理人
主权项
地址
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