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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0317370 (1989-03-01) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
Improved support for reclinable boards that consists of two arms articulated to each other, forming a folding square and presenting jamming and releasing systems, that has been structured for reliable practical positions. Simple and functional constitution that permits reclining the board in differe
A support for a reclinable object comprising two arms each having first and second ends, the first ends of said arms being pivotally joined together for movement about a common axis between folded and extended positions, releasable support means for maintaining said arms in said extended position, s
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