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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0057817 (1998-04-09) |
발명자 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 4 |
A stretcher for a canvas that includes three co-planar elongated members centrally foldable are pivotally interconnected with two horizontal elongated members. One of the elongated members has longitudinal slots along which one of the ends of each of the horizontal elongated members is sidably conne
[ What is claimed is:] [1.] An easel for a canvas, comprising:A) a structure having first, second and third upright elongated members, each having first and second ends and being centrally foldable, said first and second upright elongated members having similar dimensions, said structure further inc
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