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A method for inducing cats to exercise consists of directing a beam of invisible light produced by a hand-held laser apparatus onto the floor or wall.
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| Number | Title | Issue Date |
| 5132550 | Wave powered prime mover The prime-mover comprises a central inertial barge 1, a first outer wave-engaging pontoon 2 pivotally movable relative to the central barge 1 about the pivotal axis defined by the arrow A, and a second outer wave-engaging pontoon 3 pivotally movable relat... | 07/21/1992 |
