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经营范围
发明名称
Variable electric attenuator networks
摘要
申请公布号
US3289120(A)
申请公布日期
1966.11.29
申请号
US19630317385
申请日期
1963.10.18
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
ANDERS JAMES V.;JR. EDWIN C. SNYDER,
分类号
H03H7/25
主分类号
H03H7/25
代理机构
代理人
主权项
地址
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