发明名称 |
MAGNETIC DISPLAY BOARD SYMBOLS |
摘要 |
<p>A magnetic display board article comprises a thin, planar laminate of a ferrous, magnetically attractable particle layer sandwiched between rigid plastic or paper layers. The article is preferably formed as a multiple symbol-containing sheet and may have scored, die-cut patterns therein and printed matter within each symbol pattern following the score outline. Each symbol pattern is manually removable along the scored edges to separate it from the sheet.</p> |
申请公布号 |
CA1027359(A) |
申请公布日期 |
1978.03.07 |
申请号 |
CA19740193003 |
申请日期 |
1974.02.20 |
申请人 |
WRIGHT LINE INC. |
发明人 |
DEAN, CARL J.;MCCALLUM, DONALD B. |
分类号 |
B44F5/00;E04G7/30;G09F3/02;G09F3/04;G09F7/04 |
主分类号 |
B44F5/00 |
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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