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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0182392 (1980-08-26) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 18 인용 특허 : 0 |
A spreader/grader is attachable to a three-point hitch associated with a tractor and includes a pair of curved cutting blades which are adjustable so as to control cutting depth. The cutting blades are mounted between a pair of side runners and include curved cutting edges to facilitate spreading or
A spreader/grader comprising a frame defined by a pair of parallel ground engaging runners rigidly interconnected by transverse frame means, a front blade mounted between said runners and being transversely continuous, a rear blade mounted between said runners and being transversely continuous, mean
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