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发明名称
PIEZOELECTRIC CRYSTAL APPARATUS
摘要
申请公布号
CA407013(A)
申请公布日期
1942.08.25
申请号
CAD407013
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
STUART CROCKETT HIGHT
分类号
主分类号
代理机构
代理人
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