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发明名称
Electrodynamic pillow-type loudspeaker
摘要
申请公布号
US2523802(A)
申请公布日期
1950.09.26
申请号
US19490108945
申请日期
1949.08.06
申请人
ZIMMERMAN JOSEPH D
发明人
ZIMMERMAN JOSEPH D.
分类号
H04R9/06
主分类号
H04R9/06
代理机构
代理人
主权项
地址
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