| 摘要 |
<p>Tool for cutting off shutter sections and notching their top edges to receive locking clips at the ends to prevent relative endwise movement of the sections, has under the table on which sections are banked and aligned for cutting to equal length, a vertically acting punch carrying a spike for each shutter section to pierce the bottom crossbar, being guided into place by two guide flanges forming the slit along the underside of the section.</p> |
