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经营范围
发明名称
SUPERCONDUCTING PLATE LOUDSPEAKER
摘要
申请公布号
JPH01135298(A)
申请公布日期
1989.05.26
申请号
JP19870294413
申请日期
1987.11.20
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
SHIMADA TOSHIYUKI
分类号
H04R9/00;H04R9/04
主分类号
H04R9/00
代理机构
代理人
主权项
地址
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