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-0463402 (1974-04-23) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 34 인용 특허 : 0 |
A stepladder with a sturdy plate mounted on its top surface and a pair of wheels mounted near the top of the ladder is provided so that upon folding the legs together and inverting the ladder, it becomes a dolly which rides on said wheels and employs the plate as a carry plate. Additional wheels or
An invertable stepladder dolly comprising a stepladder having a pair of legs, cross members connecting said legs, at least some of which define steps, a support member pivotably connected thereto to support said legs in an inclined position, the uppermost cross member extending forward of said ladde
※ AI-Helper는 부적절한 답변을 할 수 있습니다.