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Priority to ES1973188948UpriorityCriticalpatent/ES188948Y/en
Publication of ES188948UpublicationCriticalpatent/ES188948U/en
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Publication of ES188948YpublicationCriticalpatent/ES188948Y/en
Frame for doors of special application in masonry, which being of the type consisting of three pieces immovably coupled together, two as stringers and another crossbeam, shaped such pieces by u-section metal profiles with an out-of-phase longitudinal bulge and outward from their respective souls, the stringers of the corresponding recesses being provided for the incorporation of hinges and lock, essentially characterized because incorporated integrally in equidistant points of the internal face of the webs of both stringers, they are provided, in the sense longitudinal of the same, the incorporation of its ends thanks to a wide groove that it incorporates while its free end presents a folding at 90ยบ forming a kind of retention heel. (Machine-translation by Google Translate, not legally binding)
ES1973188948U1973-02-211973-02-21
FRAME FOR DOORS OF SPECIAL APPLICATION IN MASONRY.
ExpiredES188948Y
(en)