| 发明名称 |
Phonograph |
| 摘要 |
|
| 申请公布号 |
US1745551(A) |
申请公布日期 |
1930.02.04 |
| 申请号 |
US19270185778 |
申请日期 |
1927.04.22 |
| 申请人 |
MCLAREN WILLIAM W |
发明人 |
MCLAREN WILLIAM W. |
| 分类号 |
G11B3/34 |
主分类号 |
G11B3/34 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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