| 发明名称 |
Display device |
| 摘要 |
A display device for displaying advertising material on a stair tread riser comprising a carrier adapted to be attached to a stair riser and an advertising plate adapted to be housed within the carrier.
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| 申请公布号 |
US2004216344(A1) |
申请公布日期 |
2004.11.04 |
| 申请号 |
US20040476731 |
申请日期 |
2004.05.28 |
| 申请人 |
BATEMAN ROGER CHRISTOPHER |
发明人 |
BATEMAN ROGER CHRISTOPHER |
| 分类号 |
G09F7/02;G09F19/22;(IPC1-7):G09F7/00 |
主分类号 |
G09F7/02 |
| 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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