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Priority to ES117172UpriorityCriticalpatent/ES117172Y/en
Publication of ES117172UpublicationCriticalpatent/ES117172U/en
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Publication of ES117172YpublicationCriticalpatent/ES117172Y/en
Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices
(AREA)
Mutual Connection Of Rods And Tubes
(AREA)
Abstract
Improved slide-exchange frame characterized by comprising one of the constituent parts formed by a square flat surface with a central rectangular window having a series of cylindrical lugs with a central groove or recess to its base arranged at a constant distance from the edge thereof. The piece behaving all of them in one of the faces of the piece. (Machine-translation by Google Translate, not legally binding)