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经营范围
发明名称
Improvements to electrostatic loudspeakers
摘要
申请公布号
GB792131(A)
申请公布日期
1958.03.19
申请号
GB19550004787
申请日期
1955.02.17
申请人
PYE LIMITED
发明人
ELLIOTT LLEWELLYN JOHN
分类号
H04R19/00
主分类号
H04R19/00
代理机构
代理人
主权项
地址
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