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发明名称
Permanent magnet electrodynamic transducer
摘要
申请公布号
US2553150(A)
申请公布日期
1951.05.15
申请号
US19490124041
申请日期
1949.10.28
申请人
THOMAS A. EDISON, INCORPORATED
发明人
SEIFRIED ALBERT L.
分类号
H04R9/12
主分类号
H04R9/12
代理机构
代理人
主权项
地址
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