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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0349084 (1994-12-02) |
우선권정보 | JP-0009979 (1994-01-31); JP-0086921 (1994-04-25) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 8 인용 특허 : 0 |
A ventilator for buildings comprising a cylindrical main body which is open at both ends and provided with a plurality of seating members installed at attachment holes opened in the cylindrical circumferential wall of the main body. The seating members having surfaces conforming to the curvature of
A ventilator in which a plurality of slats are pivotally installed in a cross-form configuration inside a cylindrical main body which is open at both ends, comprising: screw holes formed at both ends of each of said slats, seating members which are made of elastic materials and have screw through-ho
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