发明名称 SNOW GRADER
摘要 <p>This invention relates to a snow grader comprising a support frame, a plurality of baffle means attached to said frame with the bottom thereof being in substantially the same plane as the bottom of said frame, runners movably mounted on said frame, and means for moving said runners to and from a position above the bottom of said frame to a position therebelow, said baffles being substantially parallel to each other and positioned at 90 DEG to the direction of travel of the grader.</p>
申请公布号 CA969356(A) 申请公布日期 1975.06.17
申请号 CA19720143559 申请日期 1972.05.31
申请人 BROWN, NEWTON W. 发明人 BROWN, NEWTON W.
分类号 E01H4/02;(IPC1-7):01H4/00 主分类号 E01H4/02
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