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.)
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Papro S A
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Papro S A
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Priority claimed from CH7424959Aexternal-prioritypatent/CH371735A/en
Application filed by Papro S AfiledCriticalPapro S A
Publication of ES250748A1publicationCriticalpatent/ES250748A1/en
Process for the manufacture of bags of the kind comprising a filling valve that closes by itself and that is closed by means of a seam when less characterized by the fact that the valve is formed by a hollow space at least inside the bag and adjacent to the seam. (Machine-translation by Google Translate, not legally binding)
ES0250748A1958-07-121959-07-11Procedure for the manufacture of bags (Machine-translation by Google Translate, not legally binding)
ExpiredES250748A1
(en)