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发明名称
PIEZOCERAMIC DEVICE FOR ACOUSTIC WAVES AND METHOD FOR ADJUSTING THE FREQUENCY AND/OR THE TRANSIT TIME
摘要
申请公布号
EP0358795(B1)
申请公布日期
1993.06.09
申请号
EP19880115022
申请日期
1988.09.14
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
PRESTELE, KARL, DIPL.PHYS.
分类号
H03H9/145;H03H3/08;H03H3/10
主分类号
H03H9/145
代理机构
代理人
主权项
地址
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