최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0055551 (1987-05-29) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 0 |
The present invention relates to an improved double flying disc including two discs attached together in vertically stacked relation by a plurality of collapsible rings. The device is thrown with the discs adjacent one another and, during flight, the discs separate from one another as the connecting
An improved double flying disc comprising: (a) a first disc having a convex upper surface and a concave undersurface; (b) a second disc having a convex upper surface and a concave undersurface; and (c) connection means connecting said first disc undersurface to said second disc upper surface, said c
※ AI-Helper는 부적절한 답변을 할 수 있습니다.