최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0154594 (1993-11-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 0 |
A shut-off control system for an oil/gas well casing is described which is intended to protect a discharge manifold from which the oil or gas is extracted. An explosion-proof bunker is positioned below the ground level and contains a valve which can be opened to permit flow of oil or gas through the
Shut-off control system for an oil/gas well casing an upper portion of which extends above ground level and is connected to a discharge manifold and a lower portion of which extends below ground level to an oil/gas dome from which oil or gas is extracted, said control system comprising a protective
※ AI-Helper는 부적절한 답변을 할 수 있습니다.