최소 단어 이상 선택하여야 합니다.
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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0204507 (1980-11-06) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 1 |
A lifting jack has its upward and downward traveling distance controlled by means of a limit switch. The lifting jack has a base, an upright outer member rigidly connected to the base and an upright inner member movable coaxially within the outer member. An up stop and an adjustable down stop are ri
A lift jack comprising: a base; an upstanding outer member rigidly connected to the base; an upstanding inner member movable coaxially within the outer member; a first stop on the inner member; mounting means fixedly attached to the outer member; limit switch means mounted in a fixed position to the
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