发明名称 |
Film transparency slide carrier and conveyor system for front screen projection system |
摘要 |
A slide carrier and cooperating guide assembly are disclosed which provide for quick location and precise positioning of film transparencies at a determined focus point in a projector. Slide carriers introduced to the guide assembly are readily interchangeable to allow easy selection of a desired film transparency for projection.
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申请公布号 |
US4832482(A) |
申请公布日期 |
1989.05.23 |
申请号 |
US19880152647 |
申请日期 |
1988.02.04 |
申请人 |
LIFETOUCH NATIONAL SCHOOL STUDIOS, INC. |
发明人 |
KALLENBERG, KARL J. |
分类号 |
G03B15/10;G03B23/12 |
主分类号 |
G03B15/10 |
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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