| 发明名称 |
Projection screen |
| 摘要 |
|
| 申请公布号 |
US3259174(A) |
申请公布日期 |
1966.07.05 |
| 申请号 |
US19640407792 |
申请日期 |
1964.10.30 |
| 申请人 |
PIDGEON LUTHER A |
发明人 |
PIDGEON LUTHER A. |
| 分类号 |
G03B21/58 |
主分类号 |
G03B21/58 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
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