发明名称 FILTRATION APPARATUS AND PROCESS WITH COLLAPSIBLE FILER TUBES
摘要 <p>This invention relates to a jigsaw puzzle, a method of assembling a jigsaw puzzle and to a jigsaw puzzle set. The pieces of the jigsaw puzzle include a backing element which defines a first surface and an opposed second surface. Part of a picture for a complete jigsaw puzzle is provided on the first surface and there is a coating of adhesive on the second surface. The adhesive surface on the second surface is covered with a protective strip. In use, the protective strip is removed from the jigsaw puzzle piece and the piece is placed onto a mounting sheet to which the adhesive bonds. Once the puzzle is assembled, it is adhered to the mounting sheet, so that it can be kept in an assembled state.</p>
申请公布号 WO2002004089(A1) 申请公布日期 2002.01.17
申请号 IB2001001241 申请日期 2001.07.12
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