Fernando López Lerdo de Tejada
The use of lateral pressure motion with the shaping instruments S1 and S2 tended to produce smaller decreases in the torsional resistance of the finishing instruments F1 and F2.
Fernando López Lerdo de Tejada
Fernando López Lerdo de Tejada
Fernando López Lerdo de Tejada
Fernando López Lerdo de Tejada
Fernando López Lerdo de Tejada