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-0583049 (1975-06-02) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
A pipe remover for extracting a buried pipe from the ground by pulling an exposed end. The remover includes a grasping dog which engages the exposed end and a pushing dog which engages the buried trailing end. The two dogs are connected by a drawing element. By pulling outwardly on the drawing eleme
A pipe remover for extracting an old buried pipe having a first end and a second end, comprising a. a pushing dog adapted for contact engagement with the second end of the pipe, the pushing dog having a first side which contacts the second end of the pipe and a second side which has a fastening mean
※ AI-Helper는 부적절한 답변을 할 수 있습니다.