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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0283538 (1981-07-15) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 16 인용 특허 : 2 |
The present invention provides apparatus which operates the door of a chamber that is capable of maintaining pressure within the chamber. The invention includes an improved closure for cooperating to move the door among positions in which it confronts the opening of the chamber, seals the chamber an
In a sealable closure for an opening in a chamber of the type including a door capable of assuming a confronting position in which a surface of the door confronts the chamber opening but in which the door is not sealed, a sealed position in which the chamber is sealed and an opened position in which
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