Noise-making toy top
    1.
    发明授权
    Noise-making toy top 失效
    噪音制作玩具上

    公开(公告)号:US3645037A

    公开(公告)日:1972-02-29

    申请号:US3645037D

    申请日:1970-11-02

    Applicant: MATTEL INC

    CPC classification number: A63H1/28

    Abstract: A toy top having a housing with a gyroscopic-type rotor mounted on a freely rotatable shaft that extends below the housing and terminates at a spinning tip which supports the top in spinning engagement with a playing surface, the top including impeller structure rotating with the rotor within the housing, and the latter including intake and exhaust apertures for allowing the impeller to draw air into the housing and expel the air in a flow interrupted at an audible frequency.

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