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经营范围
发明名称
Four terminal ferroelectric crystals
摘要
申请公布号
US3032706(A)
申请公布日期
1962.05.01
申请号
US19590800349
申请日期
1959.03.18
申请人
WIEDER HERMAN H
发明人
WIEDER HERMAN H.
分类号
H01G7/02
主分类号
H01G7/02
代理机构
代理人
主权项
地址
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