US PATENT SUBCLASS 123 / FOR 110
.~ Analog electronic control (123/415)

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123 /   HD   INTERNAL-COMBUSTION ENGINES

FOR 101  DF  SPARK IGNITION TIMING CONTROL (123/406) {16}
FOR 110.~ Analog electronic control (123/415)

DEFINITION

Classification: 123/FOR.110

Analog electronic control:

Subject matter wherein the timing control utilizes some electrical or electronic means which functions in analog manner where the data used or calculations made are represented by analogous physical magnitudes or electrical signals.