| 摘要 |
There is provided telescoping tube apparatus including an outer tube 11, an intermediate tube 12 and an inner tube 13. The tubes can be telescoped together to provide a single tube of variable length by use of joining sleeves 21 and locking sleeves 31. The joining sleeves 21 include jaw means 24 which is acted upon by the locking sleeves 31 to lock the tubes in the desired position.
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