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经营范围
发明名称
HELICAL FILTER
摘要
申请公布号
JPH02134901(A)
申请公布日期
1990.05.23
申请号
JP19880288454
申请日期
1988.11.15
申请人
TOKO INC
发明人
OSAWA MASAMI
分类号
H01P1/20
主分类号
H01P1/20
代理机构
代理人
主权项
地址
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