| 摘要 |
An adjustable window lock comprising first and second tubes, one sliding within the second. Mounting plates are provided to attach the lock to the lower window and the upper frame. A spring loaded push button in the inner tube extends through one of a plurality of holes in the outer tube to lock the window partially open. For full opening in an emergency, the top of the lock can be easily released and the lock laid to one side. The lock can be used on sliding doors.
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