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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0097145 (1987-09-16) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 0 |
A support device having two end members, a pair of spacer members with hinges at their outer ends and intermediate hinges at their inner ends and swingable between a stored position and an extended position, a pair of transverse support panels with hinges at their outer ends and intermediate hinges
A collapsible portable support device comprising: two end members, having lower and upper ends; two spacer members having first and second surfaces, and outer and inner ends; outer hinge means located between said end members and said outer ends of said spacer members; intermediate hinge means conne
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