ES231610A1 - Procedure for manufacture of plastic caps for oil extraction (Machine-translation by Google Translate, not legally binding)
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Procedure for manufacture of plastic caps for oil extraction (Machine-translation by Google Translate, not legally binding)
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Process for the manufacture of straws for the extraction of oils, characterized in that a single strand of flexible plastic material is used, with which the strapping is started forming a central ring of several turns. (Machine-translation by Google Translate, not legally binding)
ES0231610A1956-10-291956-10-29Procedure for manufacture of plastic caps for oil extraction (Machine-translation by Google Translate, not legally binding)
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(en)