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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0706771 (2007-02-15) |
등록번호 | US-7458356 (2008-12-02) |
우선권정보 | JP-2006-042597(2006-02-20) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 7 |
A bellows unit and a compression coil spring are located in series with each other between a first member and a second member. The bellows unit has an inner bellows, an outer bellows, and first and second end members. A sealed space is defined in the bellows unit. A compressed gas is sealed in the
What is claimed is: 1. A spring apparatus comprising: a first member having an axis; a second member which reciprocates in a direction of the axis with respect to the first member; a bellows unit which is located between the first member and the second member, and which is configured to extend and
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