Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0013734UpriorityCriticalpatent/ES13734Y/en
Publication of ES13734UpublicationCriticalpatent/ES13734U/en
Application grantedgrantedCritical
Publication of ES13734YpublicationCriticalpatent/ES13734Y/en
A squad, rules or similar, perfected, essentially characterized by the fact of practicing on both sides, or on a single, of the sides of the squad or the body of the ruler or similar, a wide recess and a third of depth approximately , whose recess covers almost the entire width of the side or body, leaving in the outer contour, and in the interior if any, a ridge or projection of uniform height in a single plane, which projection serves to support against the paper and for guide one instrument against another for the drawing. (Machine-translation by Google Translate, not legally binding)
ES0013734U1946-10-031946-10-03
Square, rules or similar, perfected.
ExpiredES13734Y
(en)