US PATENT SUBCLASS 324 / 169
.~.~.~ In ignition system


Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

160  DF  ELECTRICAL SPEED MEASURING {7}
166  DF  .~ Including speed-related frequency generator {5}
168  DF  .~.~ Including periodic switch {2}
169.~.~.~ In ignition system {1}
170  DF  .~.~.~.~> High voltage speed signal type


DEFINITION

Classification: 324/169

(under subclass 168) Subject matter in which the switch is also a component of an internal combustion engine ignition system.