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Individual
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Individual
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Priority to ES1974203911UpriorityCriticalpatent/ES203911Y/en
Publication of ES203911UpublicationCriticalpatent/ES203911U/en
Application grantedgrantedCritical
Publication of ES203911YpublicationCriticalpatent/ES203911Y/en
Improved bag, of the type comprising side seams, characterized essentially because the mouth of the bag, before making the side seams is bent inward, determining lapels joined to the body by an alignment of welding points, forming a resistant area in which are soldered by welding the ends of the two straps that constitute the handles, with the particularity that the unión of the handles to the reinforcement of the mouth of the bag is determined by a weld seam inscribed in a closed geometric figure. (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of bags of plastic material with valves and soldied and squaded backgrounds (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of machines for the manufacture of bags of flexible plastic material with incorporated handles. (Machine-translation by Google Translate, not legally binding)