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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0814560 (1977-07-11) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
A method and means of improved construction of concrete culverts in which reinforcement bars are supported by removable racks until the bottom of the culvert is poured and interior wall forms are mounted on wheels with side wall forms pivoting with respect to the top wall form. By this combination o
For use in a form system for the construction of concrete culverts, a bracket for a beam supporting reinforcement bars, said bracket comprising: first and second connectible links forming an adjustable-in-length rod; an L-shaped member connected at an upper end region of said rod and oriented to for
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