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经营范围
发明名称
HELICAL FILTER
摘要
申请公布号
JPH0385902(A)
申请公布日期
1991.04.11
申请号
JP19890223979
申请日期
1989.08.30
申请人
TOKO INC
发明人
TAKADA NOBORU;OSAWA MASAMI
分类号
H01P1/20;H01P1/205;H01P7/00
主分类号
H01P1/20
代理机构
代理人
主权项
地址
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