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ES350004A1
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Improvements in machines for the manufacture of lifts of containers of easy opening. (Machine-translation by Google Translate, not legally binding)
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DE1602545A1
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Method and apparatus for producing an easy-to-open can lid
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ES337674A1
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Procedure for the manufacture of lifts of containers of easy opening. (Machine-translation by Google Translate, not legally binding)
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OA02340A
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Process for the manufacture of an easy-opening container lid and apparatus implementing this process.
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US3522124A
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Method for producing a sealing joint between thin sheets
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US3411660A
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Container cover and method of application
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CA832413A
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Method for producing a sealing joint between thin sheets and apparatus for same
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