| 摘要 |
Rescue apparatus comprising, a launcher, a missile and a supply of line mounted on the launcher, the launcher comprising a non-lethal firearm adapted to fire a blank round and having a barrel with a bore closed at its muzzle end, the muzzle end having gas ports therein, the missile being sleevable on the barrel and having means for connecting the line thereto, whereby when the firearm is discharged, gas escapes from the bore through the gas ports to propel the missile into space, carrying the line therewith.
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