| 发明名称 |
Wave-signaling system |
| 摘要 |
|
| 申请公布号 |
US1821032(A) |
申请公布日期 |
1931.09.01 |
| 申请号 |
US19290408889 |
申请日期 |
1929.11.21 |
| 申请人 |
JAMES ROBINSON |
发明人 |
ROBINSON JAMES |
| 分类号 |
H04B1/16 |
主分类号 |
H04B1/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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