La compra del sello en línea consta de 2 etapas: Etapa 1: proceder a la compra del sello por tarjeta bancaria (es conveniente introducir la dirección electrónica). Etapa 2: descargar los documentos ...

Harry Sello was recruited to work at Shockley Semiconductor company by William Shockley in 1957. Shockley was handpicking scientists for his new company, and he called Sello out of the blue one day.