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经营范围
发明名称
PIEZOELEKTRISCHER RESONATOR
摘要
申请公布号
DE2101634(B2)
申请公布日期
1972.12.07
申请号
DE19712101634
申请日期
1971.01.14
申请人
发明人
分类号
G04F5/06;H03H9/09;(IPC1-7):H03H9/04
主分类号
G04F5/06
代理机构
代理人
主权项
地址
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