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Priority to ES107502UpriorityCriticalpatent/ES107502Y/en
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Publication of ES107502YpublicationCriticalpatent/ES107502Y/en
A special frame for backpacks that is characterized by centralizing all its metal support in a solid but thin bar that makes up a mixed geometric figure composed of a horizontal section or waist from which two arms that draw the outline of a trapezoid with the particularity of that the side that forms the upper base from the two upper vertices diverge divergently to describe a landscape ellipsoidal parabola to which is added a new section that extends from pole to pole of the ellipse in the middle of it the first lower section being completed with two extensions beyond the vertices that are substantially curved to link their end tips to one of the vertices, a flat plate on which the articulation core of the remaining part of the device falls. (Machine-translation by Google Translate, not legally binding)
ES107502U1964-07-291964-07-29
A SPECIAL CASE FOR BACKPACKS.
ExpiredES107502Y
(en)
Improvements in the construction of support and articulation devices for electroventiladores (Machine-translation by Google Translate, not legally binding)