| 发明名称 |
Hum reduction |
| 摘要 |
|
| 申请公布号 |
US2223206(A) |
申请公布日期 |
1940.11.26 |
| 申请号 |
US19380237024 |
申请日期 |
1938.10.26 |
| 申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
DOME ROBERT B. |
| 分类号 |
H03F1/28;H04B15/00 |
主分类号 |
H03F1/28 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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