Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDO FORNAS MARIA ROSA
Original Assignee
EDO FORNAS MARIA ROSA
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Filing date
Publication date
Application filed by EDO FORNAS MARIA ROSAfiledCriticalEDO FORNAS MARIA ROSA
Priority to ES104131UpriorityCriticalpatent/ES104131Y/en
Publication of ES104131UpublicationCriticalpatent/ES104131U/en
Application grantedgrantedCritical
Publication of ES104131YpublicationCriticalpatent/ES104131Y/en
Valve device for bags consisting essentially of a recess formed in one edge of the bag against which and on the inner side thereof a flexible sheet is welded by three adjacent edges forming a fold that extends into the two walls of the bag in which the notch is practiced, which is included in the outline that the three welded sides of the sheet comprise, forming a lower mouth on its non-self-sealing side when an internal pressure of the bag is created. (Machine-translation by Google Translate, not legally binding)
ES104131U1964-02-031964-02-03
A VALVE DEVICE FOR BAGS.
ExpiredES104131Y
(en)
Improvements in the manufacture of bags of plastic material equipped with double filling valve (Machine-translation by Google Translate, not legally binding)
Procedure and device for the manufacture of valve bags with crossed fund of synthetic material (Machine-translation by Google Translate, not legally binding)