| 摘要 |
A tangle free lead device has a coupler with first and second bores in axial alignment. A first linear element is rotatably received in the first bore and a second linear element is rotatably received in the second bore. A head on each linear element, positioned in a central aperture of a main body of the coupler retains the linear element axially in the coupler. The relative position of the heads of the respective elements also delimit the axial movement of the linear elements relative to each other.
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