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经营范围
发明名称
FLEXIBLE PIEZOOELECTRIC SHEET
摘要
申请公布号
JPS5445593(A)
申请公布日期
1979.04.10
申请号
JP19770112350
申请日期
1977.09.19
申请人
NGK SPARK PLUG CO
发明人
KADOOKA TSUTOMU;SAITOU SHIGEO
分类号
H04R17/00;H01L41/08
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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