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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0438246 (1995-05-10) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 27 인용 특허 : 0 |
A vacuum pump for removing air from containers includes a pump housing in the form of a conduit with an open end and a closed end. A piston in the form of a conduit, open at each end, is slidably mounted within the housing, and has an inside end within the housing and an outside end protruding from
A vacuum pump for removing air from containers through a valve, comprising: an exterior pump housing comprising an elongated conduit, said conduit being closed to one end and opened at the other end; a pump piston comprising an elongated conduit open at each end, said pump piston being slidably moun
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