US PATENT SUBCLASS 310 / 139
.~.~.~.~.~ Hetero-axial excitation

Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

10  DF  DYNAMOELECTRIC {5}
40 R  DF  .~ Rotary {28}
127  DF  .~.~ Plural collector-type machines {4}
136  DF  .~.~.~ Plural commutator type {3}
137  DF  .~.~.~.~ Double current D. C. machines {2}
139.~.~.~.~.~ Hetero-axial excitation

DEFINITION

Classification: 310/139

(under subclass 137) Subject matter having hetro-axial excitation.

(1) Note. This subclass relates, for example, to double current direct current machines having cross field excitation.