发明名称 Hidden message puzzle packet
摘要 A puzzle packet which includes a greeting card containing a "hidden message. " The message appears only on a see-through sheet which is detachably fastened to overlie a panel of the card in registry with a panel-imprinted crossword puzzle-type lattice. The lattice has filled and open squares, and spaced numbers each keyed to either an "across" or a "down" heading. A purchaser of the greeting card, having noted the message, detaches the message-imprinted sheet and encloses it in a small envelope attached to the card. Should the one to whom the purchaser then sends the packet be unable to solve the puzzle to learn the message, he may resort to the preprinted answer in the small envelope.
申请公布号 US4512581(A) 申请公布日期 1985.04.23
申请号 US19830459381 申请日期 1983.01.20
申请人 PAULA BLAINE INTERNATIONAL, LTD. 发明人 LEVINE, PAULA B.
分类号 A63F3/04;A63F3/06;(IPC1-7):A63F9/06 主分类号 A63F3/04
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