发明名称 Mechanical sweeper
摘要 Mechanical sweeper with slotlike bearing bores with introduction slits in partition walls and outwardly open wheel recesses in the housing wherein the drive/running wheels are closed externally with a smooth surface and are retained by check plates and retaining pockets on the partition walls.
申请公布号 US4546512(A) 申请公布日期 1985.10.15
申请号 US19830555907 申请日期 1983.11.29
申请人 LEIFHEIT AG 发明人 LIEBSCHER, JOHANNES;SCHUELEIN, ROLF G.
分类号 A47L11/33;(IPC1-7):A47L11/33 主分类号 A47L11/33
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