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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0510523 (1974-09-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 26 인용 특허 : 0 |
A plurality of parallel constructed members that have means for securing the two parallel members together along an axis parallel to the longitudinal axis of the members to lend structural support of the members relative to each other. This allows the structurally secured members to have structures
A support structure comprising a plurality of elongated ducts and means extending longitudinally along a longitudinal length of said ducts and interlocking the ducts together to lend structural support to the ducts, said ducts being made of sheet metal, said interlocking means including one of said
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