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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0681547 (1976-04-29) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 3 인용 특허 : 1 |
An improved plug valve has means for operating a stem and plug assembly therein, including a sleeve secured within an opening in a valve cover plate, and a tubular gland which is threadably engaged in the sleeve and which coacts with upper and lower stop means incorporated into the stem to raise and
IN COMBINATION WITH A PLUG VALVE OF THE TYPE INCLUDING A VALVE CASING HAVING SEVERAL PORTS COMMUNICATING WITH A VALVE BORE AND A COVER PLATE AT ONE END OF SAID VALVE CASING HAVING AN OPENING THERETHROUGH, PLUG MEANS WITHIN SAID VALVE BORE FOR CONTROLLING FLOW THROUGH SAID PORTS, AN OPERATING STEM CO
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