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发明名称
Transducteur piézo-électrique à cristal
摘要
申请公布号
FR1521954(A)
申请公布日期
1968.04.19
申请号
FR19670105308
申请日期
1967.05.05
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
H01L41/18;H01L41/22;H03H9/125
主分类号
H01L41/18
代理机构
代理人
主权项
地址
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