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Priority to ES1968136299UpriorityCriticalpatent/ES136299Y/en
Publication of ES136299UpublicationCriticalpatent/ES136299U/en
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Publication of ES136299YpublicationCriticalpatent/ES136299Y/en
Improved frames for doors, which is characterized by one or some of the stringers that comprise it, offer longitudinally and one of its faces recayente any one of the sides of the door, some deep grooves, practiced approximately in the center of the stringer, and of scarce width, in which are lodged some rods or metallic souls of thickness and appropriate width that with very little slack, but without arriving at a total encasing in their lodging they are flush with the surface of the spar, being their length the most suitable, although it may exceed the length of the stringer, by one at both ends, so that the protruding end is embodied and introduced into the stringer that is fixed to testa in the framework construction, to ensure its perfect and solid structure. (Machine-translation by Google Translate, not legally binding)
ES1968136299U1968-02-171968-02-17
PERFECTED FRAMES FOR DOORS.
ExpiredES136299Y
(en)