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| № |
Patent number |
Title of the invention and abstract piece | Date of publication of the patent |
|---|---|---|---|
| 1 | CA2259886A1 |
APPARATUS AND METHOD FOR MAKING POUCHES;APPAREIL ET METHODE DE FABRICATION DE SACHETS
A device and method for forming plastic pouches, the device including a source o f at least two substantially superposed layers of plastic sheet, a pair of rollers fo r selectively advancing the layers of plastic sheet, a plastic filling element, and heat weldi ng means for sealing open sides of the pouches, wherein portions of a longitudinal half of ea ch of the rollers have a larger radius than ... |
25.07.1999 |