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Individual
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Individual
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Priority to ES0075324UpriorityCriticalpatent/ES75324U/en
Publication of ES75324UpublicationCriticalpatent/ES75324U/en
Combined concrete frame for doors and windows, characterized by consisting of a reinforced concrete frame of adequate section, which has incorporated in the relevant place, the male elements of the loose hinges for the articulation of the door or window frame that has to be mounted on the frame, presenting the inside part of it, a longitudinal slot for the best coupling of that to the wall. (Machine-translation by Google Translate, not legally binding)
ES0075324U1959-08-031959-08-03Reinforced concrete frame for doors and windows (Machine-translation by Google Translate, not legally binding)
PendingES75324U
(en)