| 摘要 |
<p>The invention relates to a perforating device or similar cutting means especially adapted for use with printing machines such as those of the offset kind. The perforating device herein comprises a rigid, thin metal plate which presents, in protrusion, on one of its two faces, at least one cutting or perforating element, a layer of adhesive material applied to the side of said thin metal plate opposite said cutting or perforating element, said adhesive layer capable of being protected by a protective strip, and a double faced self-adhesive tape adhering upon one of its faces to the side of said thin metal plate adjacent to said cutting or perforating element, the other face of the double faced self-adhesive tape capable of being protected by a protective strip.</p> |
