发明授权
- 专利标题： Opaque projector
- 专利标题（中）： 不透明投影仪
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申请号： US366424申请日： 1982-04-07
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公开(公告)号： US4468105A公开(公告)日： 1984-08-28
- 发明人: John R. Montgomery
- 申请人： John R. Montgomery
- 申请人地址： IL Chicago
- 专利权人： Constantin Systems, Inc.
- 当前专利权人： Constantin Systems, Inc.
- 当前专利权人地址： IL Chicago
- 主分类号： G03B21/06
- IPC分类号： G03B21/06
摘要：
A portable opaque projector is characterized by a transportable mode and an operable mode. When in its transportable mode, the projector has the configuration of a compact hexahedron; when in its operable mode the top and sides of the projector are opened up, and a mirror is mounted to the top.
公开/授权文献
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