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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0222601 (1981-01-05) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 20 인용 특허 : 4 |
A self-propelled ski is powered by an engine connected to a pair of treads disposed on opposite lateral sides of the ski. The treads are mounted on a chassis which is pivotally connected to the ski and can be moved between an operative position with the treads engaging the ground surface and an inop
A powered ski apparatus, comprising: a single elongated runner having a forward end portion and a rear end portion; seat means fastened to said runner for supporting a rider thereon; track means for producing powered movement of said runner, said track means including first and second continuous tre
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