| 发明名称 |
Automatic remote controlled opthalmic refracting chart projector |
| 摘要 |
An ophthalmic refracting chart projector having rotary slide discs, the images on which are projected on a screen, having remote operating controls permitting selective showing of the slides in selectable sequence.
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| 申请公布号 |
US4092574(A) |
申请公布日期 |
1978.05.30 |
| 申请号 |
US19760748601 |
申请日期 |
1976.12.08 |
| 申请人 |
AMERICAN OPTICAL CORPORATION |
发明人 |
HANSEN, DONALD H.;WALTUCK, MOREY H. |
| 分类号 |
A61B3/02;A61B3/032;G03B23/00;G03B23/10;(IPC1-7):G05B11/14 |
主分类号 |
A61B3/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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