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发明名称
Improvements in loud speakers
摘要
申请公布号
GB673939(A)
申请公布日期
1952.06.18
申请号
GB19480022648
申请日期
1948.08.27
申请人
MAGNAVOX (AUSTRALIA) PTY, LIMITED
发明人
分类号
H04R9/02;H04R9/06;H04R31/00
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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