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Individual
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Individual
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Priority to ES270043ApriorityCriticalpatent/ES270043A1/en
Publication of ES270043A1publicationCriticalpatent/ES270043A1/en
Improvements in the construction of folding doors, which are characterized by a board that moves up or down, guided at the top by two twin rollers that slide along two horizontal guides, and in their part lower by two levers of first gender, whose fulcrum is held in a fixed position. (Machine-translation by Google Translate, not legally binding)
ES270043A1961-08-221961-08-22Improvements in the construction of folding doors (Machine-translation by Google Translate, not legally binding)
ExpiredES270043A1
(en)