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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0047930 (1993-04-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
A toy with aerodynamic properties includes a body member with a front end, a rear end and an inner cylindrical surface which is in communication with the front and rear ends. The outer surface of the body member has a generally cylindrical surface which is coaxial with the inner cylindrical surface
A cylindrical aerodynamic toy with ballast rings comprising a body member having a front and a rear end, an inner cylindrical surface in open communication with said front and rear end, an outer convexly curved surface coaxial with said inner cylindrical surface and said outer surface lying between
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