Fleming Oscillation Valve
Fleming oscillation valve, in wooden mounting frame, (RMW/A5 - McVitie Weston number), by The Edison and Swan Electric Light Company Limited, 1905, invented by Sir (John) Ambrose Feming.
Fleming oscillation valve, in wooden mounting frame, (RMW/A5 - McVitie Weston number), by The Edison and Swan Electric Light Company Limited, 1905, invented by Sir (John) Ambrose Feming.