Cathode-ray oscilloscopes and video test instruments / Tektronix Marconi instruments 1955 : a cataloque of the telecommunication measurement equipment and industrial electronic instruments Telecommunications test equipment for the Armed Forces : catalogue / Marconi Instruments Scientific handicraft : an illustrated and descriptive catalogue of scientific apparatus manufactured and sold by John J. Griffin & Sons, makers of scientific instruments Electrical measuring instruments / EGCO Gossen Fundamentals of instrumentation for the industries / Honeywell Marconi instruments 1954 : a cataloque of the telecommunication measurement equipment and industrial electronic instruments / Marconi Instruments Bryans aeroquipment limited. Instrument test equipment Contraves. Servo/test instrument Electronic Instruments ltd. Thechronotron millisecond meter Electronic Instruments ltd. The Chronotron millisecond meter Jugner Instrument AB. Passive night vision
