| 摘要 |
The cutter assembly includes a hollow guide track having a slot on an upper side thereof in which a cutting element operates. The cutting element has a handle, a tongue on the handle projecting through the slot, and an enlargement operating within the track of a larger lateral dimension than the slot to lock the cutting element slidably on the track. The cutting element has a blade on each leading edge, such blade being offset to one side whereby to ride along one side edge of the slot and accomplish a shearing engagement against such edge. The invention has a pair of end arms for mounting it on a paper roll holder.
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