发明名称 |
Variable attenuator |
摘要 |
|
申请公布号 |
US2167237(A) |
申请公布日期 |
1939.07.25 |
申请号 |
US19370155065 |
申请日期 |
1937.07.22 |
申请人 |
GOVE EDWARD L |
发明人 |
GOVE EDWARD L. |
分类号 |
H01C10/48 |
主分类号 |
H01C10/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
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