ES7891U - Removable frames with new system of angular unión of the pieces (Machine-translation by Google Translate, not legally binding)
- Google Patents
Removable frames with new system of angular unión of the pieces (Machine-translation by Google Translate, not legally binding)
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Removable frames with new system of angular unión of the parts characterized because the unión of the pieces is strengthened by the back by means of staples that are introduced in holes provided for this purpose having these staples slightly arched so that they enter under pressure and can not fall down. (Machine-translation by Google Translate, not legally binding)
ES0007891U1942-11-061942-11-06
Removable frames with new angular joining system of the pieces
ExpiredES7891Y
(en)