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Priority to ES77834UpriorityCriticalpatent/ES77834Y/en
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Publication of ES77834YpublicationCriticalpatent/ES77834Y/en
Improvements in the planning boards that achieve the required efficiency by means of vertical rectangular panels whose front side is occupied by vertical and horizontal series of aligned holes, occupying the upper side of the rectangle and the middle line, an index carrier rail. The reverse side of this board has two parallel hooks arranged in the upper part and one arranged in the lower part, suitable first to be attached to a horizontal bar and the second to another bar parallel to the first and arranged in the same vertical plane . (Machine-translation by Google Translate, not legally binding)
ES77834U1959-09-101959-09-10
Improvements in planning boards
ExpiredES77834Y
(en)