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    • 1. 发明申请
    • AN APPLIANCE FOR WORKING ON VARIOUS SURFACES
    • 用于在各种表面上工作的器具
    • WO1993021813A1
    • 1993-11-11
    • PCT/DK1993000150
    • 1993-05-04
    • ES-EJENDOMSCENTER AMBASKAARUP, Erik
    • ES-EJENDOMSCENTER AMBA
    • A47L13/02
    • A47L13/02B60S3/045
    • Appliance for working on certain surfaces of the kind consisting of a concave/convex hollow body, where the working tool proper is fixed to the circumference of the bottom of the hollow body (fig. 1) (1) or to detachable rings (fig. 3) which are pushed onto a hollow body of another shape. The working tool proper is a disc, which is sharp toward the centre, in some embodiments a ring-shaped knife with an interior cutting edge. In other embodiments scratching points or file-cuts on the bottom may be present. Fluid-containing material may be attached to the bottom of the appliance. One form of the tool is another disc-shaped knife, having cutting edges both on the inside towards the centre and on the outside away from the centre.
    • 用于在由凹/中空体组成的某些表面上工作的装置,其中工作工具本身固定到中空体(图1)(1)的底部的圆周上或可拆卸的环(图1)。 3),其被推到另一形状的中空体上。 工作工具本身是朝向中心是尖锐的盘,在一些实施例中是具有内切割刃的环形刀。 在其它实施例中,可能存在底部的划痕或文件切割。 含有流体的材料可以附接到器具的底部。 该工具的一种形式是另一种圆盘形刀,其内侧朝向中心并且远离中心的外侧具有切割刃。