发明名称 |
Compound beam illuminating |
摘要 |
A light source is disposed within a light reflector formed to direct a light beam through an open end of the reflector and light controlling means for projecting a modified light beam from the same reflector.
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申请公布号 |
US4288847(A) |
申请公布日期 |
1981.09.08 |
申请号 |
US19790049087 |
申请日期 |
1979.06.18 |
申请人 |
ELMER, WILLIAM B. |
发明人 |
ELMER, WILLIAM B. |
分类号 |
F21S8/08;F21V7/04;(IPC1-7):F21V7/09 |
主分类号 |
F21S8/08 |
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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