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发明名称
Means to support portable loud-speakers
摘要
申请公布号
US2532692(A)
申请公布日期
1950.12.05
申请号
US19490081191
申请日期
1949.03.12
申请人
INTERNATIONAL PROJECTOR CORPORATION
发明人
BORBERG WILLY
分类号
H04R1/02
主分类号
H04R1/02
代理机构
代理人
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地址
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