| 发明名称 |
Directional evacuation lights |
| 摘要 |
A directional evacuation lighting apparatus used during an emergency evacuation situation for a building where an emergency sign with direction is projected on the floor to help direct and locate closest safety exit. |
| 申请公布号 |
US2009059602(A1) |
申请公布日期 |
2009.03.05 |
| 申请号 |
US20080229918 |
申请日期 |
2008.08.28 |
| 申请人 |
SIEMENS BUILDING TECHNOLOGIES, INC. |
发明人 |
SANTOS FRED;LONTKA KAREN D. |
| 分类号 |
F21V1/00;F21V15/00;G08B5/00 |
主分类号 |
F21V1/00 |
| 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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