| 摘要 |
A buoyant body has a hook extending outward from one end and a pair of rigid fins mounted on and extending angularly outward from opposite sides of the body. The fins are identically constructed and symmetrically mounted on the body. Each fin is oriented on the body such that one major surface is disposed at an angle with respect to a shank of the hook extending through the body. Further, the fins are oriented such that the first and second side edges of each fin are disposed at an angle with respect to a vertical plane extending through the shank of the hook.
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