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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0930059 (1978-08-01) |
우선권정보 | ZA-0004944 (1977-08-16); ZA-0005185 (1977-08-26); ZA-0005571 (1977-09-16) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 73 인용 특허 : 0 |
A valve including a fluid port; a valve seat round the port; and closure means movable towards and away from the seat, the closure means including a sealing surface engageable with the seat and a protrusion which extends from the sealing surface towards the seat, the protrusion being operative to cr
A valve, comprising: a fluid port; a valve seat round the port; and closure means movable towards and away from the seat, the closure means including a sealing surface engageable with the seat and a protrusion of resilient material which extends from the sealing surface towards the seat, the protrus
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