| 摘要 |
<p>" SANDING BLOCK " A holder for sandpaper composed of a truncated triangular prismatic body having an axial bore for storing a roll of sandpaper the end of which is drawn through a lateral slot and around the base of the body, and including a pair of wings hinged at one side to the apex of the body to be clamped upon the sandpaper when pressure to applied in use of the holder.</p> |
