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经营范围
发明名称
Polyphase filter
摘要
申请公布号
GB1107311(A)
申请公布日期
1968.03.27
申请号
GB19670005581
申请日期
1967.02.06
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
GINGELL MICHAEL JOHN
分类号
H03H7/01
主分类号
H03H7/01
代理机构
代理人
主权项
地址
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