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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0398679 (1982-07-14) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 42 인용 특허 : 0 |
An improved portable expandable barrier is provided which comprises a pair of fences slideably interconnected and releasably held in a desired orientation by locking means such as lock set cylinders. Preferably, one or both fences include telescoping sections releasably locked together to facilitate
An improved portable expandable barrier, said barrier comprising, in combination: (a) a first fence; (b) a second fence interconnected to said first fence for sliding movement relative thereto to expand and contract said barrier, (c) first locking means secured to said first and second fences to rel
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