| 摘要 |
There is provided a device (10) for opening a security screen (12) locked by a latch member (130). The device (10) comprising telescopically extending members (14,16,18) having a striking member (40), the striking member (40) being contactable with the latch member (130) in use to release the latch member (130) when the telescopically extending members are in an extended position.
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