TY - BOOK AU - Heldt,P.M. TI - Torque converters or transmissions: For use with combution engines in road and rail vehicles, tractors and locomotives : Mechanical, hydraulic, electric, differential. Stepped and continuously-variable. Hand-controlleddd, automatic and semi-automatic PY - 1955/// CY - Philadelphia PB - Chilton Company KW - Vehicles KW - Tractors and locomotives N1 - Includes index ER -