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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0058692 (1979-07-18) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 10 인용 특허 : 0 |
The arrangement comprises a rigid structure having a support portion, e.g. in the form of a chair. On opposite sides of the support portion are hingedly mounted two step units. The step units are so designed and arranged that in their inoperative position they can be stowed under the support portion
A combined seat and step-ladder arrangement comprising a rigid structure having a support portion, and comprising first and second step units hingedly mounted on opposite portions of the rigid structure, said units each having two steps and being adapted, in an inoperative position, to be stowed und
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