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Individual
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Individual
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Priority to ES0254203ApriorityCriticalpatent/ES254203A2/en
Publication of ES254203A2publicationCriticalpatent/ES254203A2/en
Improvements introduced in the object of the main patent no. 248850 on new door manufacturing process, characterized in that the plurality of slats that lead to the formation of the door frame, are covered by their external faces and sides by slats of greater strength, which gives rise to the formation of a frame within which the said slats are formed and thus achieving greater strength. (Machine-translation by Google Translate, not legally binding)
ES0254203A1959-12-151959-12-15New door manufacturing procedure (Machine-translation by Google Translate, not legally binding)
ExpiredES254203A2
(en)