Description
The piercing die (16) has several solid blocks (18) each provided with several holes (19). A punch (14) is provided opposite to the piercing die. Independent claims are included for the following: (1) series of perforations forming method; (2) mattress; and (3) usage of mattress.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Official Data Source | HTML | Access the complete Patent AT-E401176-T1: [Translated] PERFORATING DEVICE FOR THE LAYER OF A MATTRESS on the official website. | Open resource |