| 发明名称 |
Visible shift binder |
| 摘要 |
|
| 申请公布号 |
US2135943(A) |
申请公布日期 |
1938.11.08 |
| 申请号 |
US19370156286 |
申请日期 |
1937.07.29 |
| 申请人 |
THE C.E. SHEPPARD CO. |
发明人 |
KORNAHRENS JOHN H.O. |
| 分类号 |
B42F13/28 |
主分类号 |
B42F13/28 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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