US PATENT SUBCLASS 123 / 606
.~ High frequency ignition system

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

594  DF  HIGH TENSION IGNITION SYSTEM {28}
606.~ High frequency ignition system {2}
607  DF  .~.~> Free running oscillator supplies coil primary
608  DF  .~.~> Having a specific spark plug

DEFINITION

Classification: 123/606

High frequency ignition system:

(under subclass 594) Subject matter in which the ignition system includes means to generate a high frequency train of distinct sparks at a spark gap.