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1. IN A "YO-YO" HAVING A PAIR OF HOLLOW BODY MEMBERS MOUNTED IN AXIALLY SPACED RELATION ON AN AXLE, AND A STRING WINDABLE ABOUT THE AXLE FOR CONTROLLED THROWING OF THE "YO-YO" AND ROTATION OF THE BODY MEMBERS INCIDENT TO WINDING AND UNWINDING OF SAID STRING ON THE AXLE, AN ELECTRICAL SYSTEM BORNE BY EACH OF SAID BODY MEMBERS INCLUDING A CURRENT SOURCE PROVIDING CONTACT POLES OF OPPOSITE POLARITY, A LIGHT RADIATING MEMBER PROVIDING CONTACT POSTS OF OPPOSITE POLARITY, MEANS CONNECTING THE CONTACT POLES OF SAID CURRENT SOURCE WITH THE SIMILAR POLARITY
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1. IN A "YO-YO" HAVING A PAIR OF HOLLOW BODY MEMBERS MOUNTED IN AXIALLY SPACED RELATION ON AN AXLE, AND A STRING WINDABLE ABOUT THE AXLE FOR CONTROLLED THROWING OF THE "YO-YO" AND ROTATION OF THE BODY MEMBERS INCIDENT TO WINDING AND UNWINDING OF SAID STRING ON THE AXLE, AN ELECTRICAL SYSTEM BORNE BY EACH OF SAID BODY MEMBERS INCLUDING A CURRENT SOURCE PROVIDING CONTACT POLES OF OPPOSITE POLARITY, A LIGHT RADIATING MEMBER PROVIDING CONTACT POSTS OF OPPOSITE POLARITY, MEANS CONNECTING THE CONTACT POLES OF SAID CURRENT SOURCE WITH THE SIMILAR POLARITY
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