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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0005434 (1993-01-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 20 인용 특허 : 0 |
A lifting apparatus includes a mast that is mounted orthogonally (perpendicularly) to the plane of a base supported by wheels. A beam and tension member are connected pivotally to the mast and further to a carriage assembly support in such a manner that the support and mast maintain a parallel relat
A lifting apparatus comprising: a base defining a plane and including mast attachment means; a mast having a first and a second end, with said mast first end secured to said base by said mast attachment means on said base and said mast extending orthogonally upward from said base; said mast includin
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