发明名称 |
Apparatus for a scrolling sign |
摘要 |
A scrolling sign apparatus is disclosed. The apparatus includes a web having a number of signs connected in a loop. The web includes a bead along each longitudinal edge thereof. The apparatus includes a housing which has a window for displaying the signs. The web is wound on a number of rollers located in the housing which advance the web through the window. Each roller has two circumferential grooves located near the ends of the roller. The grooves engage the beads along the edges of the web.
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申请公布号 |
US2004244244(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20030454471 |
申请日期 |
2003.06.05 |
申请人 |
KLASSEN ABRAM;O'MALLEY BILL |
发明人 |
KLASSEN ABRAM;O'MALLEY BILL |
分类号 |
G09F11/26;G09F11/28;(IPC1-7):G09F11/12;G09F13/04 |
主分类号 |
G09F11/26 |
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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