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Individual
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Individual
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Priority to ES0034806UpriorityCriticalpatent/ES34806U/en
Publication of ES34806UpublicationCriticalpatent/ES34806U/en
It claims, a notch for geometric precision delineation, characterized by having one of its acute angles of trigonometric cosine equivalent to (see formula), n being the relation of the circumference to the diameter. (Machine-translation by Google Translate, not legally binding)
ES0034806U1952-12-061952-12-06A square for geometric delineation (Machine-translation by Google Translate, not legally binding)
PendingES34806U
(en)