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发明名称
ELECTROMECHANICAL TRANSDUCERS USING A POLYMER PIEZOELECTRIC FILM
摘要
申请公布号
KR1019810000730(B1)
申请公布日期
1981.06.25
申请号
KR1019770000507
申请日期
1977.03.02
申请人
发明人
分类号
主分类号
代理机构
代理人
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