| 摘要 |
A lock in the form of a night latch comprising a spring, an elongated member connected to the spring, a head on the elongated member to mount the spring on a receiving device, a securing device mounted on a second receiving device with which the head can be engaged in use in a manner such that some distortion of the spring can occur with the head remaining in engagement with the securing device, but so that the head can be completely disengaged from said securing device if desired.
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