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-0754596 (1985-07-15) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 55 인용 특허 : 1 |
The wheel chair of this invention has its seat member supported for raising and lowering on a chassis having a castering rear wheel and two relatively small front wheels rotatable on a common axis, each driven independently of the other by a reversible electric motor. A brake member is pivoted to th
A wheel chair comprising a chair element having a seat member with front and rear edges and an upwardly projecting back rest, a chassis on which the chair element is supported, wheels on said chassis, and power drive means on the chassis whereby certain of the wheels are driven, said wheel chair bei
※ AI-Helper는 부적절한 답변을 할 수 있습니다.