发明名称 |
System for mounting billboards |
摘要 |
A device for temporarily mounting a billboard to an exterior surface on a vehicle utilizes a rectangular frame for supporting the billboard and a pair of vacuum cups for attaching the frame to the side of the vehicle. The vacuum cups are provided with a pumping mechanism for creating a substantially leak-proof seal against the surface of the vehicle and for thus preventing unintended detachment of the sign from the surface.
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申请公布号 |
US5588237(A) |
申请公布日期 |
1996.12.31 |
申请号 |
US19940183035 |
申请日期 |
1994.01.18 |
申请人 |
CHASE, JEFFREY A.;CHASE, JOSEPH L. |
发明人 |
CHASE, JEFFREY A.;CHASE, JOSEPH L. |
分类号 |
G09F21/04;(IPC1-7):G09F21/04 |
主分类号 |
G09F21/04 |
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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