| 发明名称 |
Adjustable film gate |
| 摘要 |
|
| 申请公布号 |
US2113580(A) |
申请公布日期 |
1938.04.12 |
| 申请号 |
US19370135266 |
申请日期 |
1937.04.06 |
| 申请人 |
DRAEGER RUPERT H |
发明人 |
DRAEGER RUPERT H. |
| 分类号 |
G03B27/62 |
主分类号 |
G03B27/62 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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