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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0634579 (1975-11-24) |
발명자 / 주소 |
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출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 32 인용 특허 : 0 |
An inflation device comprising, an inflatable member having a fluid receiving cavity and an opening extending through the member to the cavity. The device has a fluid lock element secured to the inflatable member in the opening, with the lock element having flexible wall means defining a chamber, fi
A cushion device for a protective headgear, comprising: an inflatable liner having a wall at least partially defining a cavity, and an opening extending through said wall; a fluid lock member secured to said liner wall in the opening, said lock member having an elongated wall section defining a cham
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