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经营范围
发明名称
ELECTRET ELEMENT AND METHOD OF PRODUCING SAME
摘要
申请公布号
JPS5948915(A)
申请公布日期
1984.03.21
申请号
JP19820158756
申请日期
1982.09.14
申请人
IWASAKI TSUSHINKI KK
发明人
ENOMOTO KOUHEI;FUJIMOTO TEIJI
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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