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发明名称
Improvements in or relating to electric attenuators
摘要
申请公布号
GB837633(A)
申请公布日期
1960.06.15
申请号
GB19570018537
申请日期
1957.06.12
申请人
PYE LIMITED
发明人
PEACH EDMUND REGINALD
分类号
H03H7/24
主分类号
H03H7/24
代理机构
代理人
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