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发明名称
Loud-speaker mounting
摘要
申请公布号
US1757719(A)
申请公布日期
1930.05.06
申请号
US19290357459
申请日期
1929.04.23
申请人
ATWATER KENT ARTHUR
发明人
KENT ARTHUR ATWATER
分类号
H04R1/02
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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