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-0666889 (1976-03-15) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 4 인용 특허 : 1 |
A balloon has an airfoil-shaped member connected to its top surface. The airfoil-shaped member has a top curved skin with a plurality of parallelly-spaced partitions which form therebetween a plurality of air passageways for air. Upon the descent or lateral movement of the balloon, the airfoil-shape
An improved balloon comprising: a main portion for the containment therein of an inflating medium; and an airfoil-shaped member attached to the top surface of said main portion, said airfoil-shaped member comprising a curved skin having a mouth portion, a plurality of longitudinally extending partit
※ AI-Helper는 부적절한 답변을 할 수 있습니다.