ATM. Strowger 25-line private automatic telephone exchange equipment ATM. Rythmatic control, Type 45 equipment for l.t. substation areas, engeneering bulletin 2191 ATM. Strowger unattended private automatic branch exchanges (P.A.B.X.) ATM. Portable single channel carrier equioment type P.B. 1/1, operating instructions, engeneering bulletin 2250 ATM. Street traffic control signals The automatic coil winder & electrical equipment co. Ltd. Model 7 universal avometer, Working instructions for the instrument and its accessories list Fixed and semi-adjustable resistors / British Electric Resistance Co (BERCO) list Rotary type rheostats and potentiometers / British Electric Resistance Co (BERCO) léger char blindé Garden-Loyd M. VI Scientific handicraft : an illustrated and descriptive catalogue of scientific apparatus manufactured and sold by John J. Griffin & Sons, makers of scientific instruments
