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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0547254 (2000-04-11) |
발명자 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 13 인용 특허 : 27 |
A trenching machine having independently driven wheels. Trenching machine comprises digging chain that moves between a raised position and a lowered position, a housing that is carried by a pair of front wheels and a pair of rear casters, a motor that independently drives front wheels to propel hous
1. A trenching machine comprising:a housing having a front end and a rear end; digging means carried by said housing for digging a trench into the ground, said digging means positioned near said front end of said housing; propelling means carried by said housing for moving said housing; a first plow
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