00772nam0 2200253 450 00002434320090312125613.020090312d1951----km-y0itay50------baengGBa-------001yyCathode - ray oscillographsby J. H. Reyner4. edLondonPitman1951IX,199 p.ill.19 cmCathode - ray oscillographs45389Oscillografi a raggi catodici621.38121Ingegneria elettrotecnicaReyner,John Hereward633249ITUNIPARTHENOPE20090312RICAUNIMARC000024343S 621.381/10S A 187DSA2009Cathode - ray oscillographs45389UNIPARTHENOPE