| 摘要 |
A blade pivots on its tang into and out of a slot in a blade carrier. The carrier, in turn, slides in a handle between two positions. In the first position, the blade is prevented from pivoting out of the carrier by contact with the handle but in the second position the blade is free to rotate out of the slot to an extended configuration. The user slides the carrier between the two positions with a spring loaded button in the side of the handle.
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