D-C dynamo electric machine

D. C. electric motor

D. C. Electric motor with improved stator and rotor structure

D. C. motor with multi-tooth poles

D.C. brushless air fan with an annular oil trough

D.C. brushless motor with an improved yoke

D.C. electric motor

D.C. electric motor

D.C. Impulsion motor

D.C. machine of type having permanent magnets with auxiliary pol

D.C. machine, with mechanical and electrical connections among c

D.C. motor

D.C. motor

D.C. motor

D.C. motor and reversing circuit

D.C. motor phase windings and their commutation

D.C. Motor with primary and auxiliary magnetic poles

D.C. motors with unequal pole spacing

D.C. PM motor and generator with a stator core assembly...

D.C. PM motor with a stator core assembly formed of pressure...