| 摘要 |
The invention relates to an articulated device for a perch, one of whose ends is fixed to the cage while the second end receives the perch. The device consists of a tube or bar of a flexible material 1 with internal threading 2a and 2b at each end; a screw 3 fastens the end of the device 2a to the cage; and a second screw fixes the perch 4 to the end 2b of the device. <IMAGE>
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