发明名称 |
Rigid mechanical corner pocket for tensioning flexible signs and signal devices |
摘要 |
A signal device includes a frame supporting a flexible sheet having indicia on one face. A plurality of oppositely disposed retainers are fixed to the other face of the sheet. A portion of the frame extends into each retainer to rigidify the sheet. Each retainer includes a movable member for controlling entry and removal of the associated portion of the frame.
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申请公布号 |
US4490934(A) |
申请公布日期 |
1985.01.01 |
申请号 |
US19830474777 |
申请日期 |
1983.03.14 |
申请人 |
EASTERN METAL OF ELMIRA, INC. |
发明人 |
KNAPP, MICHAEL D. |
分类号 |
B60Q7/00;E01F9/012;G09F7/00;G09F17/00;(IPC1-7):G09F17/00 |
主分类号 |
B60Q7/00 |
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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