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Priority to ES0034806UpriorityCriticalpatent/ES34806U/es
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Se reivindica, una escotadura para delineación geométrica de precisión, caracterizada por tener uno de sus ángulos agudos de coseno trigonométrico equivalente a (ver fórmula), siendo n la relación de la circunferencia al diámetro.
ES0034806U1952-12-061952-12-06Una escuadra para delineación geométrica
PendingES34806U
(es)