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发明名称
Piezoelectric device
摘要
申请公布号
US2203332(A)
申请公布日期
1940.06.04
申请号
US19380229131
申请日期
1938.09.09
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
KINSLEY THOMAS G.
分类号
H01H57/00;H03H9/05
主分类号
H01H57/00
代理机构
代理人
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地址
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