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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0926526 (1978-07-20) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 9 인용 특허 : 2 |
This invention relates to a winch-actuated extendable tongue for boat trailers and the like that is characterized by the winch being so located and reaved with respect to a pair of telescoping elements that it is effective to positively drive the tongue into extended as well as retracted position re
For use with a vehicle-drawn trailer, the winch-operated extendable tongue which comprises: a first elongate rigid tubular element having front and rear ends and an elongate slot intermediate its ends, said rear end being open; connecting means carried by the front end of said first tubular element
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