war department technical manual Sweeper, rotary, tractor-mounted : power take-off drive : model K Helicopter; an Illustrated History of Rotary-Winged Aircraft Rotary Engines of World War One Some rotary traffic switching methods / J. Kruithof système téléphonique automatique rotary 7A-2 / L. Schreiber, W. Hatton 4343D Electrical manual - Rotary consumer equipment (airborne) Vol. 1: General and technical information (deel 1 van 2) 4343D Electrical manual - Rotary consumer equipment (airborne) Vol. 2: General orders and modifications 4343D Electrical manual - Rotary consumer equipment (airborne) Vol. 6: Repair and reconditioning instructions (deel 1 van 3) list Rotary type rheostats and potentiometers / British Electric Resistance Co (BERCO) AB Metal Products. Rotary, lever and miniature switches etc. 1340B
